K. Takai

发表

Addition of Organochromium Reagents to Carbonyl Compounds

K. Takai, 2004 .

A 7 -Cylinder IVD Compressor for Automotive Air Conditioning

K. Takai, Shigemi Shimizu, K. Terauchi, 1989 .

Lithium‐Free Synthesis of Sodium 2,2,6,6‐Tetramethylpiperidide and Its Synthetic Applications

K. Takai, S. Asako, Masato Kodera, 2019, Advanced Synthesis & Catalysis.

Rhodium-Catalyzed Synthesis of Chiral Spiro-9-silabifluorenes by Dehydrogenative Silylation: Mechanistic Insights into the Construction of Tetraorganosilicon Stereocenters.

K. Takai, Y. Kuninobu, Masahito Murai, 2016, Chemistry.

Rhodium-catalyzed dehydrogenative germylation of C-H bonds: new entry to unsymmetrically functionalized 9-germafluorenes.

K. Takai, Koji Matsumoto, Masahito Murai, 2014, Organic letters.

Copper(I)-and Gold(I)-catalyzed Synthesis of 2,4-Disubstituted Quinoline Derivatives from N-Aryl-2-propynylamines

K. Takai, Y. Inoue, Y. Kuninobu, 2007 .

Rhenium-catalyzed hydroamidation of unactivated terminal alkynes: synthesis of (E)-enamides.

S. Yudha S., K. Takai, Y. Kuninobu, 2007, Organic letters.

Simple and selective method for RCHO → (E)-RCH=CHX conversion by means of a CHX3-CrCl2 system

K. Takai, K. Utimoto, K. Nitta, 1986 .

Regioselective synthesis of highly substituted furans via tantalum-alkyne complexes.

K. Takai, K. Utimoto, Yasutaka Kataoka, 1992 .

A trinuclear chromium(III) chlorocarbyne.

K. Takai, T. Kurogi, Keiichi Irifune, 2021, Chemical communications.

Palladium‐Catalyzed Direct Arylation of Azulene Based on Regioselective C−H Bond Activation

Masahiro Nakamura, K. Takai, Masahito Murai, 2016 .

Molybdenum-Catalyzed Stereospecific Deoxygenation of Epoxides to Alkenes

K. Takai, S. Asako, Masahito Murai, 2016 .

Stereospecific Deoxygenation of Aliphatic Epoxides to Alkenes under Rhenium Catalysis.

K. Takai, Masahito Murai, T. Nakagiri, 2015, Organic letters.

Rhenium-Catalyzed Construction of Polycyclic Hydrocarbon Frameworks by a Unique Cyclization of 1,n-Diynes Initiated by 1,1-Difunctionalization with Carbon Nucleophiles.

K. Takai, Masahito Murai, Erika Uemura, 2017, Angewandte Chemie.

Organic Reactions Catalyzed by Rhenium Carbonyl Complexes

K. Takai, Y. Kuninobu, 2011 .

Rhenium-Catalyzed Cyclization via 1,2-Iodine and 1,5-Hydrogen Migration for the Synthesis of 2-Iodo-1H-indenes.

K. Takai, Masahito Murai, 2019, Organic letters.

Addition of Organochromium Reagents to Carbonyl Compounds

K. Takai, 2004 .

Palladium-catalyzed synthesis of dibenzophosphole oxides via intramolecular dehydrogenative cyclization.

K. Takai, Takuya Yoshida, Y. Kuninobu, 2011, The Journal of organic chemistry.

Rhenium-Catalyzed Regioselective ortho-Alkenylation and [3 + 2 + 1] Cycloaddition of Phenols with Internal Alkynes.

K. Takai, Masahito Murai, Masaki Yamamoto, 2019, Organic letters.

Isolation and structural characterization of geminal di(iodozincio)methane complexes stabilized with nitrogen ligands.

K. Takai, N. Hosokawa, Yusuke Nishida, 2015, Journal of the American Chemical Society.

Azulene-Fused Linear Polycyclic Aromatic Hydrocarbons with Small Bandgap, High Stability, and Reversible Stimuli Responsiveness.

K. Takai, Hiromi Ota, Masahito Murai, 2017, Organic letters.

Short Synthesis of [5]- and [7]Phenacenes with Silyl Groups at the Axis Positions.

K. Takai, D. Roy, Masahito Murai, 2015, Chemistry, an Asian journal.

Cyclization of 1,n-Enynes Initiated by the Addition Reaction of gem-Dichromiomethane Reagents to Alkynes.

K. Takai, Masahito Murai, Ryuji Taniguchi, 2020, Organic letters.

Indium-catalyzed synthesis of keto esters from cyclic 1,3-diketones and alcohols and application to the synthesis of seratrodast.

K. Takai, Y. Kuninobu, Takashi Matsuki, 2010, Chemistry, an Asian journal.

Indium-catalyzed retro-claisen condensation.

K. Takai, Y. Kuninobu, A. Kawata, 2007, Angewandte Chemie.

Manganese-catalyzed cleavage of a carbon-carbon single bond between carbonyl carbon and α-carbon atoms of ketones.

K. Takai, Y. Kuninobu, A. Kawata, 2011, Angewandte Chemie.

Rhenium-catalyzed anti-Markovnikov addition reaction of methanetricarboxylates to unactivated terminal acetylenes.

K. Takai, Masahito Murai, Shunsuke Hori, 2015, Journal of the American Chemical Society.

Development of Novel and Highly Efficient Methods to Construct Carbon–Carbon Bonds Using Group 7 Transition-Metal Catalysts

K. Takai, Y. Kuninobu, 2012 .

Rhenium- and manganese-catalyzed insertion of alkynes into a carbon-carbon single bond of cyclic and acyclic 1,3-dicarbonyl compounds.

K. Takai, S. Yudha, Y. Kuninobu, 2009, Chemistry, an Asian journal.

Indium‐Catalyzed Retro‐Claisen Condensation.

K. Takai, Y. Kuninobu, A. Kawata, 2008 .

Rhenium-catalyzed regioselective synthesis of multisubstituted pyridines from β-enamino ketones and alkynes via C-C bond cleavage.

K. Takai, S. Yamamoto, Y. Kuninobu, 2012, Organic letters.

Insertion of polar and nonpolar unsaturated molecules into carbon-rhenium bonds generated by C-H bond activation: synthesis of phthalimidine and indene derivatives.

K. Takai, Y. Tokunaga, Y. Kuninobu, 2006, Journal of the American Chemical Society.

Rhenium-catalyzed formation of indene frameworks via C-H bond activation: [3+2] annulation of aromatic aldimines and acetylenes.

K. Takai, Y. Kuninobu, A. Kawata, 2005, Journal of the American Chemical Society.

Rhenium-catalyzed insertion of nonpolar and polar unsaturated molecules into an olefinic C-H bond.

Y. Nishina, K. Takai, Y. Kuninobu, 2009, Organic letters.

Manganese-catalyzed insertion of aldehydes into a C-H bond.

Y. Nishina, K. Takai, Y. Kuninobu, 2007, Angewandte Chemie.

Rhenium-catalyzed insertion of aldehyde into a C-H bond: synthesis of isobenzofuran derivatives.

Y. Nishina, K. Takai, Y. Kuninobu, 2006, Journal of the American Chemical Society.

Organic reactions catalyzed by rhenium carbonyl complexes.

K. Takai, Y. Kuninobu, 2011, Chemical reviews.

The first example for reactivity umpolung of diaryliodonium salts: Chromium(II)-mediated arylation of aldehydes

M. Ochiai, K. Takai, Da-wei Chen, 1997 .

Effective methods of carbonyl methylenation using CH2I2-Zn-Me3Al and CH2Br2-Zn-TiCl4 system

K. Takai, K. Oshima, H. Nozaki, 1978 .

Rhenium- and manganese-catalyzed synthesis of aromatic compounds from 1,3-dicarbonyl compounds and alkynes.

K. Takai, S. Yudha, Y. Kuninobu, 2010, The Journal of organic chemistry.

Stereoselective synthesis of (E)-alkenylsilanes from aldehydes with a reagent prepared by chromium(II) reduction of Me3SiCHBr2

T. Okazoe, K. Takai, K. Utimoto, 1987 .

Carbonyl methylenation of easily enolizable ketones

T. Okazoe, K. Takai, H. Nozaki, 1985 .

Chemoselective methylenation with a methylenedianion synthon

T. Okazoe, K. Takai, J. Hibino, 1985 .

Aldehyde-selective addition of alkynylchromium compounds prepared by reduction of alkynyl halides with chromium(II) reagent

K. Takai, K. Oshima, T. Kuroda, 1985 .

Wittig-type Reaction of Dimetallated Carbodianion Species as Produced by Zinc Reduction of gem-Polyhalogen Compounds in the Presence of Lewis Acids

K. Takai, K. Oshima, H. Nozaki, 1980 .

A Dramatic Effect of a Catalytic Amount of Lead on the Simmons-Smith Reaction and Formation of Alkylzinc Compounds from Iodoalkanes. Reactivity of Zinc Metal: Activation and Deactivation

K. Takai, T. Kakiuchi, K. Utimoto, 1994 .

Alkylidenation of Ester Carbonyl Groups by means of a Reagent Derived from RCHBr2, Zn, TiCl4, and TMEDA. Stereoselective Preparation of (Z)-Alkenyl Ethers

T. Okazoe, K. Takai, K. Oshima, 1987 .

Preparation of β-Hetero-Substituted Alkenylsilanes from Carboxylic Acid Derivatives

K. Takai, K. Utimoto, Yasutaka Kataoka, 1989 .

Regio- and stereoselective preparation of silyl enol ethers by alkylidenation of silyl esters

T. Okazoe, K. Takai, K. Utimoto, 1988 .

Dramatic Rate Acceleration by a Diphenyl-2-pyridylphosphine Ligand in the Hydration of Nitriles Catalyzed by Ru(acac)2 Complexes

K. Takai, T. Oshiki, M. Utsunomiya, 2005 .

Rhenium-catalyzed allylation of C-H bonds of benzoic and acrylic acids.

K. Takai, Y. Kuninobu, K. Ohta, 2011, Chemical communications.

Rhenium-catalyzed Addition of Trimethylsilylacetylene to Aldimines

K. Takai, Y. Inoue, Y. Kuninobu, 2006 .

Rhenium-catalyzed [2+2] Cycloadditions of Norbornenes with Internal and Terminal Acetylenes

K. Takai, Y. Kuninobu, P. Yu, 2007 .

Synthesis and Properties of Sila[n]helicenes via Dehydrogenative Silylation of C-H Bonds under Rhodium Catalysis.

A. Nishiyama, K. Takai, Masahito Murai, 2016, Organic letters.

Organosodium compounds for catalytic cross-coupling

K. Takai, S. Asako, Hirotaka Nakajima, 2019, Nature Catalysis.

Formal Hydroallylation of Carbon-Carbon Triple Bonds via Tantalum-Alkyne Complexes. Stereoselective Preparation of 1,4-Dienes

K. Takai, Takeshi Fujii, I. Furukawa, 1995 .

Tertiary amine-accelerated allylgallation of terminal alkynes

K. Takai, Y. Ikawa, Keijiro Ishii, 2002 .

Trace Amounts of Second Metal Elements Can Play a Key Role in the Generation of Organometallic Compounds

K. Takai, 2015 .

Indium-catalyzed reduction of allyl bromide with gallium or aluminum. Formation of allylgallium and allylaluminum sesquibromides.

K. Takai, Y. Ikawa, 2002, Organic letters.

Reactions of alkenylchromium reagents prepared from alkenyl trifluoromethanesulfonates (triflates) with chromium(II) chloride under nickel catalysis.

K. Takai, K. Oshima, H. Nozaki, 1986, Journal of the American Chemical Society.

Selective grignard-type carbonyl addition of alkenyl halides mediated by chromium(II) chloride

T. Hiyama, K. Takai, H. Nozaki, 1984 .

Reactions of coordinated geminal dichromium reagents with aldehydes: stereoselective formation of (Z)-2-chloroalk-2-en-1-ols

K. Takai, Ryo Kokumai, Takahumi Nobunaka, 2001 .

Iridium-Catalyzed Sequential Silylation and Borylation of Heteroarenes Based on Regioselective C-H Bond Activation.

K. Takai, Masahito Murai, Naoki Nishinaka, 2018, Angewandte Chemie.

Stereoselective Cross Pinacol-Type Coupling betweenα,β-Unsaturated Ketones and Aldehydes Mediated by Chromium(II) and R3SiCl

K. Takai, Ryotaro Morita, Chika Toratsu, 2001 .

Reductive Coupling Reactions Promoted by Low-valent Early Transition Metals and Lanthanoids

K. Takai, 2007 .

Stereoselective preparation of primary (E)-allylic amines by the reaction of tantalum-alkyne complexes with metallo-imines

K. Takai, K. Utimoto, Yasutaka Kataoka, 1994 .

Titanium and zirconium complexes with non-salicylaldimine-type imine-phenoxy chelate ligands: syntheses, structures, and ethylene-polymerization behavior.

K. Takai, T. Oshiki, Yasuhiko Suzuki, 2006, Chemistry, an Asian journal.

A novel heteroligated phenoxy-based titanium complex: Structure, stability, and ethylene polymerization behavior

K. Takai, T. Oshiki, Yasuhiko Suzuki, 2005 .

Catalytic Performance of Tantalum-η^2-Alkyne Complexes [TaCl_3(R^1C≡CR^2)L_2] for Alkyne Cyclotrimerization

H. Nomoto, K. Takai, T. Oshiki, 2004 .

Synthesis of bis(phenoxyimine) Ti alkyl complexes and observation of living species by 1H nmr spectroscopy

K. Takai, T. Oshiki, T. Fujita, 2005 .

Rhenium-catalyzed regioselective alkylation of phenols.

K. Takai, Y. Kuninobu, Takashi Matsuki, 2009, Journal of the American Chemical Society.

Cross-pinacol-type coupling reactions between α, β-unsaturated ketones and aldehydes with low-valent metals

K. Takai, Ryotaro Morita, Chika Toratsu, 2003 .

Tantalum Complexes Incorporating Tris(pyrazolyl)Borate Ligands: Syntheses, Structures, and Ethylene Polymerization Behavior

K. Takai, T. Oshiki, M. Mitani, 2009 .

Synthesis of Linear Allylsilanes via Molybdenum-Catalyzed Regioselective Hydrosilylation of Allenes

K. Takai, S. Asako, Sae Ishikawa, 2016 .

Rhenium- and manganese-catalyzed insertion of acetylenes into beta-keto esters: synthesis of 2-pyranones.

K. Takai, Y. Kuninobu, M. Nishi, 2008, Chemical communications.

Use of Cyclopropane as C1 Synthetic Unit by Directed Retro-Cyclopropanation with Ethylene Release.

K. Takai, S. Asako, Takaaki Kobashi, 2018, Journal of the American Chemical Society.

Rhenium-catalyzed synthesis of 2H-1,2-oxaphosphorin 2-oxides via the regio- and stereoselective addition reaction of β-keto phosphonates with alkynes.

Masahiro Nakamura, K. Takai, Masahito Murai, 2014, Organic letters.

Rhenium‐ and Aniline‐Catalyzed One‐Pot Annulation of Aromatic Ketones and α,β‐Unsaturated Esters Initiated by C ? H Bond Activation

Y. Nishina, K. Takai, Y. Kuninobu, 2006 .

Rhodium-catalyzed intramolecular silylation of unactivated C(sp3)-H bonds.

K. Takai, Y. Kuninobu, Takahiro Nakahara, 2013, Organic letters.

Rhenium-catalysed dehydrogenative borylation of primary and secondary C(sp3)-H bonds adjacent to a nitrogen atom.

K. Takai, Y. Kuninobu, Masahito Murai, 2015, Chemical communications.

Palladium-catalyzed ortho-selective C-H borylation of 2-phenylpyridine and its derivatives at room temperature.

T. Iwanaga, K. Takai, Y. Kuninobu, 2013, Angewandte Chemie.

Rhenium-Catalyzed Allylation of C—H Bonds of Benzoic and Acrylic Acids.

K. Takai, Y. Kuninobu, K. Ohta, 2012 .

Rhenium-catalyzed insertion of terminal alkenes into a C(sp2)-H bond and successive transfer hydrogenation

K. Takai, Y. Kuninobu, P. Yu, 2011 .

Rhenium-catalyzed diastereoselective synthesis of aminoindanes via the insertion of allenes into a C-H bond.

K. Takai, Y. Kuninobu, P. Yu, 2010, Organic letters.

Synthesis of Cp-Re complexes via olefinic C-H activation and successive formation of cyclopentadienes.

Y. Nishina, K. Takai, Y. Kuninobu, 2008, Journal of the American Chemical Society.

Rhenium-catalyzed synthesis of multisubstituted aromatic compounds via C-C single-bond cleavage.

K. Takai, Y. Kuninobu, A. Kawata, 2008, Organic letters.

Bismuth(III)-catalyzed dehydrative etherification and thioetherification of phenolic hydroxy groups.

K. Takai, Masahito Murai, Kazuki Origuchi, 2014, Organic letters.

Iridium-catalyzed intermolecular dehydrogenative silylation of polycyclic aromatic compounds without directing groups.

K. Takai, Masahito Murai, Keishi Takami, 2015, Chemistry.

Iron-catalyzed synthesis of glycine derivatives via carbon-nitrogen bond cleavage using diazoacetate.

K. Takai, Y. Kuninobu, M. Nishi, 2010, Chemical communications.

Regioselective Sequential Silylation and Borylation of Aromatic Aldimines as a Strategy for Programming Synthesis of Multifunctionalized Benzene Derivatives.

K. Takai, Masahito Murai, Takahiro Enoki, 2019, Organic letters.

Rhenium‐Catalyzed Addition of Trimethylsilylacetylene to Aldimines.

K. Takai, Y. Inoue, Y. Kuninobu, 2007 .

Efficient catalytic insertion of acetylenes into a carbon-carbon single bond of nonstrained cyclic compounds under mild conditions.

K. Takai, Y. Kuninobu, A. Kawata, 2006, Journal of the American Chemical Society.

Rhenium-catalyzed insertion of terminal acetylenes into a C-H bond of active methylene compounds.

K. Takai, Y. Kuninobu, A. Kawata, 2005, Organic letters.

Isocyanate acting as a carbonyl precursor: pyridyl group-assisted formation of 4H-pyrido[1,2-a]pyrimidin-4-ones from ketimines and isocyanates.

K. Takai, Y. Kuninobu, Shuhei Nishimura, 2006, Organic & biomolecular chemistry.

Preparation of 2,5-disubstituted furans from terminal ynones and aldehydes with CrCl2, Me3SiCl, and H2O

K. Takai, Shuji Sakamoto, Ryotaro Morita, 2001 .

Sequential ruthenium-catalyzed hydroamination and rhenium-catalyzed C-H bond activation leading to indene derivatives.

Y. Nishina, K. Takai, Y. Kuninobu, 2006, Organic letters.

Preparation, Structural Characterization, and Reactions of Tantalum-Alkyne Complexes TaCl3(R1C⋮CR2)L2 (L2 = DME, Bipy, and TMEDA; L = Py)

K. Takai, K. Mashima, K. Tani, 2003 .

ALKOXY-DIRECTED INSERTION OF CARBON-CARBON DOUBLE BONDS INTO TANTALUM-ALKYNE COMPLEXES. CHEMO- AND STEREOSELECTIVE ADDITION OF ALKENYL GROUPS TO OLEFI NS

K. Takai, K. Utimoto, M. Yamada, 1994 .

Regioselectivity in the reaction of tantalum-unsymmetrical acetylene complexes with carbonyl compounds. Stereoselective preparation of 1-alkenyl sulfides, α,β-unsaturated esters, and amides

K. Takai, K. Utimoto, Yasutaka Kataoka, 1992 .

Reaction of Tantalum–Alkyne Complexes with Isocyanates or Acyl Cyanides. Stereoselective Functionalization of Carbon–Carbon Triple Bonds

Seiji Miwatashi, K. Takai, K. Utimoto, 1992 .

Reactions between tantalum- or niobium-alkyne complexes and carbonyl compounds

K. Takai, K. Oshima, K. Utimoto, 1992 .

Selective reduction of alkynes to (Z)-alkenes via niobium- or tantalum-alkyne complexes

K. Takai, K. Oshima, K. Utimoto, 1992 .

Reaction of tantalum-alkyne complexes with hydrazones. Stereoselective synthesis of (E)-allylic hydrazines

Seiji Miwatashi, K. Takai, K. Utimoto, 1992 .

Stereoselective synthesis of trisubstituted .alpha.,.beta.-unsaturated esters and amides via reactions of tantalum-alkyne complexes derived from acetylenic esters and amides with carbonyl compounds

K. Takai, K. Utimoto, M. Tezuka, 1991 .

Reaction of Tantalum–Alkyne Complexes with Isocyanates Leading to (E)-α,β-Unsaturated Amides. Stereoselective Functionalization of Carbon-Carbon Triple Bonds

K. Takai, K. Utimoto, Yasutaka Kataoka, 1991 .

Preparation of 1-naphthols from acetylenes and o-phthalaldehyde using low-valent tantalum and niobium.

K. Takai, K. Oshima, K. Utimoto, 1990 .

Regioselective synthesis of highly substituted furans via tantalum-alkyne complexes

K. Takai, K. Utimoto, Yasutaka Kataoka, 1990 .

Tantalum-alkyne complexes as synthetic intermediates: stereoselective preparation of trisubstituted allylic alcohols from acetylenes and aldehydes

K. Takai, K. Utimoto, Yasutaka Kataoka, 1990 .

Reduction of acetylenes to (Z)-olefins by means of low-valent niobium or tantalum.

K. Takai, K. Oshima, K. Utimoto, 1990 .

Acyclic Stereoselection. 32. Synthesis and Characterization of the Diastereomeric (4S)-Pentane-1,2,3,4-tetrols

K. Takai, C. Heathcock, 1985 .

Rhenium‐Catalyzed [2 + 2] Cycloadditions of Norbornenes with Internal and Terminal Acetylenes.

K. Takai, Y. Kuninobu, P. Yu, 2008 .

Acceleration Effects of Phosphine Ligands on the Rhodium-Catalyzed Dehydrogenative Silylation and Germylation of Unactivated C(sp(3))-H Bonds.

K. Takai, Y. Kuninobu, Masahito Murai, 2015, The Journal of organic chemistry.

Indium-catalyzed construction of polycyclic aromatic hydrocarbon skeletons via dehydration.

K. Takai, Y. Kuninobu, Takashi Matsuki, 2011, The Journal of organic chemistry.

Mechanistic Insights into Rhenium-Catalyzed Regioselective C-Alkenylation of Phenols with Internal Alkynes.

K. Takai, Masahito Murai, Masaki Yamamoto, 2019, Chemistry.

Rhenium-Catalyzed ortho -Alkylation of Phenols

K. Takai, Y. Kuninobu, Masahito Murai, 2018, Organic Syntheses.

Generation of chromioenamines by reduction of O-acetyloximes with chromium(II) and their application.

K. Takai, Y. Kunisada, N. Katsura, 2001, Chemical communications.

Reduction of acrolein dialkyl, acetals with CrCl2. γy-alkoxy substitued allylic chromium reagents for selective synthesis of erythro-1, 2-diols.

K. Takai, K. Utimoto, K. Nitta, 1988 .

A Novel Catalytic Effect of Lead on the Reduction of a Zinc Carbenoid with Zinc Metal Leading to a Geminal Dizinc Compound. Acceleration of the Wittig-Type Olefination with the RCHX2-TiCl4-Zn Systems by Addition of Lead

K. Takai, T. Kakiuchi, K. Utimoto, 1994 .

Rhenium-catalyzed Coupling of 2-Propynyl Alcohols and Several Nucleophiles via Dehydration

K. Takai, Y. Kuninobu, H. Ueda, 2008 .

Transition-metal catalyzed oxidation of alcohols to aldehydes and ketones by means of Me3SiOOSiMe3

K. Takai, K. Oshima, S. Matsubara, 1983 .

Manganese-catalyzed synthesis of hydantoin derivatives from terminal alkynes and isocyanates

K. Takai, Y. Kuninobu, Kou Kikuchi, 2008 .

Alkylidenation of Ester Carbonyl Groups: (Z)‐1‐Ethoxy‐1‐Phenyl‐1‐Hexene

T. Okazoe, K. Takai, K. Oshima, 2003 .

Rhenium-catalyzed synthesis of naphthalene derivatives via insertion of aldehydes into a C–H bond

Y. Nishina, K. Takai, Y. Kuninobu, 2007 .

Aliphatic claisen rearrangement promoted by organoaluminium compounds

K. Takai, I. Mori, K. Oshima, 1981 .

Rhodium-Catalyzed Silylative and Germylative Cyclization with Dehydrogenation Leading to 9-Sila- and 9-Germafluorenes: A Combined Experimental and Computational Mechanistic Study.

K. Takai, S. Asako, Masahito Murai, 2017, Chemistry.

Rhodium-catalyzed asymmetric synthesis of spirosilabifluorene derivatives.

Kazuhiko Takai, Naoya Tamura, K. Takai, 2013, Angewandte Chemie.

Rhodium-catalyzed synthesis of silafluorene derivatives via cleavage of silicon-hydrogen and carbon-hydrogen bonds.

Kazuhiko Takai, Takuya Yoshida, K. Takai, 2010, Journal of the American Chemical Society.

Iridium-catalyzed Dehydrogenative Dimerization of Benzylmethylsilanes via Silylation of C(sp3)–H Bonds Adjacent to a Silicon Atom

K. Takai, Masahito Murai, Y. Takeuchi, 2017 .

Regioselective reductive coupling of alkynes and aldehydes leading to allylic alcohols.

K. Takai, Shuji Sakamoto, Takahiko Isshiki, 2003, Organic letters.

PALLADIUM-CATALYZED SYNTHESIS OF A PHOSPHINE OXIDE WITH A CHIRAL PHOSPHORUS CENTER VIA C-H PHOSPHINATION

K. Takai, Y. Kuninobu, Kazuki Origuchi, 2012 .

Rhodium-Catalyzed Synthesis of Benzosilolometallocenes via the Dehydrogenative Silylation of C(sp(2))-H Bonds.

K. Takai, Koji Matsumoto, Masahito Murai, 2015, Organic letters.

Rhenium-catalyzed regio- and stereoselective synthesis of γ-thio-α,β-unsaturated ketones via insertion of terminal alkynes into the C-S bond.

K. Takai, Y. Kuninobu, M. Nishi, 2012, Organic letters.

Rhenium-catalyzed regio- and stereoselective addition of two carbon units to terminal alkynes via carbon-carbon bond cleavage of β-keto sulfones.

K. Takai, Y. Kuninobu, H. Matsuzaki, 2011, Organic letters.

1.06 Organochromium Reagents

K. Takai, 2014 .

Bismuth-catalyzed synthesis of polycyclic aromatic hydrocarbons (PAHs) with a phenanthrene backbone via cyclization and aromatization of 2-(2-arylphenyl)vinyl ethers.

K. Takai, D. Roy, N. Hosokawa, 2014, Organic letters.

Rhenium-catalyzed synthesis of stereodefined cyclopentenes from beta-ketoesters and aliphatic allenes.

K. Takai, S. Yudha, Y. Kuninobu, 2008, Angewandte Chemie.

Three‐Component Coupling Reactions of Alkyl Iodides, 1,3‐Dienes, and Carbonyl Compounds by Sequential Generation of Radical and Anionic Species with CrCl2

Takafumi Fujii, K. Takai, Naoto Matsukawa, 1998 .

Carboncarbon bond formation by cross-coupling of enol phosphates with organoaluminium compounds catalyzed by palladium(O) complex

K. Takai, K. Oshima, H. Nozaki, 1980 .

Regioselective Functionalization of 9,9-Dimethyl-9-silafluorenes by Borylation, Bromination, and Nitration.

K. Takai, Mizuki Kimura, Masahito Murai, 2019, The Journal of organic chemistry.

Activation of manganese metal by a catalytic amount of PbCl2 and Me3SiCl

K. Takai, T. Moriwake, T. Ueda, 1996 .

Chromium-Mediated Stannylcyclopropanation of Alkenes with (Diiodomethyl)stannanes.

K. Takai, Masahito Murai, Ryuji Taniguchi, 2019, Organic letters.

Rhenium-catalyzed synthesis of indenones by novel dehydrative trimerization of aryl aldehydes via C-H bond activation.

K. Takai, Y. Kuninobu, Takashi Matsuki, 2010, Organic letters.

Heterosubstituted cyclopropanation of alkenes with organochromium reagents derived from heterosubstituted dihalomethanes, CrCl2, and tetraalkylethylenediamine

A. Inoue, K. Takai, Ryo Kokumai, 2007 .

Preparation of Cyclopropylsilanes from Terminal Alkenes with Organochromium Reagents

K. Takai, Shota Toshikawa, Masato Hirano, 2004 .

Stereoselective iodocyclopropanation of terminal alkenes with iodoform, chromium(II) chloride, and N,N,N',N'-tetraethylethylenediamine.

A. Inoue, K. Takai, Ryo Kokumai, 2003, Journal of the American Chemical Society.

Generation of a Geminal Dicarbenoid of Chromium: Formation of Allenes from Terminal Alkenes in One-Pot

K. Takai, Ryo Kokumai, Shota Toshikawa, 2002 .

Synthesis of Borylcyclopropanes by Chromium-Promoted Cyclopropanation of Unactivated Alkenes.

K. Takai, Masahito Murai, Ryuji Taniguchi, 2017, Organic letters.

Selective oxidation of a primary hydroxyl in the presence of secondary one

K. Takai, K. Oshima, H. Tomioka, 1981 .

Rhenium- and gold-catalyzed coupling of aromatic aldehydes with trimethyl(phenylethynyl)silane: synthesis of diethynylmethanes.

K. Takai, Y. Kuninobu, Eri Ishii, 2007, Angewandte Chemie.

Regioselective functionalization of alkanes by sequential dehydrogenation-hydrozirconation.

K. Takai, S. Yamamoto, Y. Kuninobu, 2010, Chemical communications.

Isomerization of Allylic Alcohols Catalyzed by Vanadium or Molybdenum Complexes

T. Okazoe, K. Takai, K. Oshima, 1985 .

Isomerization of primary allylic alcohols to tertiary ones by means of Me3SiOOSiMe3-VO(acac)2 catalyst

K. Takai, S. Matsubara, H. Nozaki, 1983 .

Chromium(II) Chloride–Nickel(II) Chloride

K. Takai, 2001 .

Aliphatic Claisen Rearrangement Promoted by Organoaluminium Reagents

K. Takai, I. Mori, K. Oshima, 1984 .

Preparation of alkylchromium reagents by reduction of alkyl halides with chromium(II) chloride under cobalt catalysis

K. Takai, K. Utimoto, K. Nitta, 1989 .

Stereoselective Construction of Quaternary Carbons by the Reaction of Aldehydes with Allylic Chromium Reagents Prepared from 1,3-Diene Monoepoxides and CrCl2

K. Takai, K. Utimoto, Osamu Fujimura, 1990 .

Manganese-catalyzed construction of tetrasubstituted benzenes from 1,3-dicarbonyl compounds and terminal acetylenes.

S. Yudha S., K. Takai, Y. Kuninobu, 2008, Organic letters.

Structural Characterization and Unique Catalytic Performance of Silyl-Group-Substituted Geminal Dichromiomethane Complexes Stabilized with a Diamine Ligand.

K. Takai, N. Hosokawa, T. Oshiki, 2017, Journal of the American Chemical Society.

Hydroarylation of acetylenes, acrylates, and isocyanates with heteroaromatic compounds under rhenium catalysis

Y. Nishina, K. Takai, Y. Tokunaga, 2008 .

Catalytic Cleavage and Reformation of Ethereal σ-Bonds

K. Takai, Masahito Murai, Kazuki Origuchi, 2018, Chemistry Letters.

Organoaluminium assisted rearrangements of five-membered ring enol ethers with vinyl substituents

K. Takai, I. Mori, K. Oshima, 1984 .

Structural elucidation of a methylenation reagent of esters: synthesis and reactivity of a dinuclear titanium(iii) methylene complex†

K. Takai, T. Kurogi, Kaito Kuroki, 2021, Chemical science.

Formal Hydroallylation of Carbon-Carbon Triple Bonds via Tantalum- Alkyne Complexes. Stereoselective Preparation of 1,4-Dienes.

K. Takai, Takeshi Fujii, I. Furukawa, 1995 .

Cross-Coupling Reactions betweenα,β-Unsaturated Ketones and Aldehydes with CrCl2: Aldol Condensation and Cyclopropanol Formation

Takafumi Fujii, K. Takai, Takuma Suzuki, 2000 .

Tertiary Amine-Accelerated Allylgallation of Terminal Alkynes.

K. Takai, Y. Ikawa, Keijiro Ishii, 2002 .

Preparation and Reactions of Alkenylchromium Reagents: 2‐Hexyl‐5‐Phenyl‐1‐Penten‐3‐ol

K. Takai, K. Oshima, K. Utimoto, 2003 .

Baeyer-Villiger oxidation with Me3SiOOSiMe3 under assistance of SnCl4 or BF3.OEt2

K. Takai, S. Matsubara, H. Nozaki, 1983 .

Sequential Generation and Utilization of Radical and Anionic Species with a Novel Manganese-Lead Reducing Agent. Three-Component Coupling Reactions of Alkyl Iodides, Electron-Deficient Olefins, and Carbonyl Compounds.

K. Takai, T. Moriwake, T. Ueda, 1996, The Journal of organic chemistry.

Regioselective arene homologation through rhenium-catalyzed deoxygenative aromatization of 7-oxabicyclo[2.2.1]hepta-2,5-dienes.

K. Takai, Masahito Murai, Taku Ogita, 2019, Chemical communications.

Cyclization of 5-alkynones with chromium alkylidene equivalents generated in situ from gem-dichromiomethanes.

K. Takai, T. Kurogi, Masahito Murai, 2020, Chemical communications.

Transformation of Aldehydes into (E)-1-Alkenylsilanes and (E)-1-Alkenylboronic Esters with a Catalytic Amount of a Chromium Salt

K. Takai, Y. Tachibana, Y. Kunisada, 2004 .

One-Pot Transformation of RCHO to (E)-RCH=CHSiMe3 Using CHI3, Mn, Me3SiCl, and a Catalytic Amount of CrCl2

K. Takai, Shintaro Hikasa, Tetsuya Ichiguchi, 1999 .

Transformation of Aldehydes into (E)-1-Alkenylboronic Esters with a Geminal Dichromium Reagent Derived from a Dichloromethylboronic Ester and CrCl2

K. Takai, T. Moriwake, K. Utimoto, 1995 .

Reaction of (α-thioalkyl)chromium compounds prepared by chromium(II) reduction of α-halo sulfides

K. Takai, K. Utimoto, S. Nakatsukasa, 1986 .

Stereoselective addition of α-chloro allylic chromium reagents to aldehydes

K. Takai, K. Utimoto, Yasutaka Kataoka, 1989 .

Organochromium Reagents for Highly Selective Carbon-Carbon Bond Formation

K. Takai, K. Utimoto, 1988 .

B12-CATALYZED GENERATION OF ALLYLIC CHROMIUM REAGENTS FROM 1,3-DIENES, CRCL2, AND WATER

K. Takai, Chika Toratsu, 1998 .

Ketone synthesis from acid chloride by means of organometallic reagent derived from R3Al-Cu(acac)2-PPh3 system.

K. Takai, K. Oshima, H. Nozaki, 1981 .

Cross-coupling Reaction between Enol Phosphates and Organoaluminium Compounds in the Presence of Palladium(0) Catalyst

K. Takai, K. Oshima, H. Nozaki, 1984 .

Pd(0) promoted alkylation of enol phosphates with organoaluminium compounds and its synthetic applications

K. Takai, K. Oshima, H. Nozaki, 1981 .

Successive carbon-carbon bond formation by sequential generation of radical and anionic species with manganese and catalytic amounts of PbCl2 and Me3SiCl

K. Takai, T. Ueda, H. Matsushita, 2003 .

Sequential 1,4-Addition and Ireland-Claisen Rearrangement Promoted by a Manganese-PbCl(2)-Me(3)SiCl System(1).

K. Takai, T. Moriwake, T. Ueda, 1996, The Journal of organic chemistry.

(E)-Selective olefination of aldehydes by means of gem-dichromium reagents derived by reduction of gem-diiodoalkanes with chromium(II) chloride

T. Okazoe, K. Takai, K. Utimoto, 1987 .

Preparation of alkenyl sulfides and enamines by alkylidenation of carboxylic acid derivatives

K. Takai, K. Utimoto, Yasutaka Kataoka, 1989 .

A PRACTICAL TRANSFORMATION OF ALDEHYDES INTO (E)-IODOALKENES WITH GEMINAL DICHROMIUM REAGENTS

K. Takai, Shintaro Hikasa, Tetsuya Ichiguchi, 1999 .

Halogen–sodium exchange enables efficient access to organosodium compounds

K. Takai, L. Ilies, S. Asako, 2021, Communications Chemistry.

Nucleophilic Addition of Organochromium Reagents to Carbonyl Compounds

K. Takai, H. Nozaki, 2000 .

Generation of novel nucleophilic organometallic species and their applications to organic synthesis

K. Takai, C. Heathcock, 2010 .

Iridium-catalyzed dehydrogenative silylation of azulenes based on regioselective C-H bond activation.

K. Takai, Masahito Murai, Keishi Takami, 2015, Organic letters.

Iridium-catalysed hydrosilylation of cyclopropanes via regioselective carbon-carbon bond cleavage.

A. Nishiyama, K. Takai, Masahito Murai, 2017, Chemical communications.

Rhodium‐Catalyzed Intramolecular Silylation of Unactivated C(sp3)—H Bonds.

K. Takai, Y. Kuninobu, Takahiro Nakahara, 2013 .

Improved synthesis and crystal structure of TiCl3(tmeda)(thf): A highly stereoselective pinacol coupling reagent for aromatic aldehydes

K. Takai, T. Oshiki, T. Kiriyama, 2000 .

Reactions of Coordinated Geminal Dichromium Reagents with Aldehydes: Stereoselective Formation of (Z)-2-Chloroalk-2-en-1-ols.

K. Takai, Ryo Kokumai, Takahumi Nobunaka, 2001 .

Unsymmetrical Difunctionalization of Two Different C–H Bonds in One Pot Under Transition-Metal Catalysis

K. Takai, Masahito Murai, 2018, Synthesis.

Stereoselective Cross Pinacol-Type Coupling Between α,β-Unsaturated Ketones and Aldehydes Mediated by Chromium(II) and R3SiCl.

K. Takai, Ryotaro Morita, Chika Toratsu, 2001 .

ISOLATION AND REACTIONS OF A TANTALUM-IMINE COMPLEX TACL3(DME)(PHCH=NCH2PH)

K. Takai, K. Mashima, K. Tani, 1998 .

Catalytic Performance of Tantalum—η2-Alkyne Complexes [TaCl3(R1CCR2)L2] for Alkyne Cyclotrimerization.

H. Nomoto, K. Takai, T. Oshiki, 2004 .

Selective Cyclotrimerization of Acetylenes via Tantalum‐Alkyne Complexes.

K. Takai, K. Utimoto, M. Yamada, 1995 .

Stereoselective Preparation of Primary (E)-Allylic Amines by the Reaction of Tantalum-Alkyne Complexes with Metalloimines.

K. Takai, K. Utimoto, Yasutaka Kataoka, 2010 .

Regio- and stereoselective addition of tantalum-[1-(alkylthio)-1-alkyne] complexes with carbonyl compounds

K. Takai, K. Utimoto, Yasutaka Kataoka, 1990 .

Chromium(VI) or Ruthenium(II) Complex Catalysis in Oxidation of Alcohols to Aldehydes and Ketones by Means of Bis(trimethylsilyl) Peroxide

K. Takai, K. Oshima, S. Matsubara, 1988 .

Amine-Promoted anti-Markovnikov Addition of 1,3-Dicarbonyl Compounds with Terminal Alkynes under Rhenium Catalysis

K. Takai, Masahito Murai, Erika Uemura, 2018 .

Molybdenum‐Catalyzed Deoxygenative Cyclization of Carbonyl Compounds for the Synthesis of Pyrido[2,1‐ a ]isoindoles

K. Takai, S. Asako, Takafumi Kobayashi, 2021 .

Stereospecific Deoxygenation of Aliphatic Epoxides to Alkenes under Rhenium Catalysis.

K. Takai, Masahito Murai, T. Nakagiri, 2015, Organic letters.

Rhenium‐Catalyzed Synthesis of 2H‐1,2‐Oxaphosphorin 2‐Oxides via the Regio‐ and Stereoselective Addition Reaction of β‐Keto Phosphonates with Alkynes.

Masahiro Nakamura, K. Takai, Masahito Murai, 2015 .

Rhenium-Catalyzed Formation of Indene Frameworks via C—H Bond Activation: [3 + 2] Annulation of Aromatic Aldimines and Acetylenes.

K. Takai, Y. Kuninobu, and Atsushi Kawata, 2006 .

Rhenium- and aniline-catalyzed one-pot annulation of aromatic ketones and alpha,beta-unsaturated esters initiated by C-H bond activation.

Y. Nishina, K. Takai, Y. Kuninobu, 2006, Angewandte Chemie.

Molybdenum-Quinone-Catalyzed Deoxygenative Coupling of Aromatic Carbonyl Compounds.

T. Kobayashi, K. Takai, L. Ilies, 2022, Organic letters.

Deoxygenative Insertion of Carbonyl Carbon into a C(sp3)-H Bond: Synthesis of Indolines and Indoles.

K. Takai, Keiya Hirata, S. Asako, 2019, Journal of the American Chemical Society.

Alkyne Exchange Reactions of Silylalkyne Complexes of Tantalum: Mechanistic Investigation and Its Application in the Preparation of New Tantalum Complexes Having Functional Alkynes (PhC⋮CR (R = COOMe, CONMe2))

K. Takai, T. Oshiki, Atsushi Yamada, 2007 .

Stereoselective Epoxidation of Allylic Alcohols and Dehydrogenative Oxidation of Secondary Alcohols by Means of t-Butyl Hydroperoxide and Aluminium Reagents

K. Takai, K. Oshima, H. Nozaki, 1983 .

Selective oxidation with t-butyl hydroperoxide and aluminium reagents

K. Takai, K. Oshima, H. Nozaki, 1980 .

STEREOSELECTIVE EPOXIDATION OF ALLYLIC ALCOHOLS AND DEHYDROGENATIVE OXIDATION OF SECONDARY ALCOHOLS BY MEANS OF TERT-BUTYL HYDROPEROXIDE AND ALUMINUM REAGENTS

K. Takai, K. Oshima, H. Nozaki, 1984 .

Oxidation of alcohols with oxoperoxobis(N-phenylbenzohydroxamato)molybdenum(VI)

K. Takai, K. Oshima, H. Tomioka, 1981 .

SELECTIVE OXIDATION WITH TERT-BUTYL HYDROPEROXIDE AND ALUMINUM REAGENTS

K. Takai, K. Oshima, H. Nozaki, 1980 .

Reactions and Mechanistic Studies of Rhenium-Catalyzed Insertion of α,β-Unsaturated Carbonyl Compounds into a C–H Bond

Y. Nishina, K. Takai, Y. Kuninobu, 2008 .

Generation of α-Boryl Radicals by Reduction of α-Haloalkylboronic Esters with CrCl2

K. Takai, M. Ohta, N. Shinomiya, 1998 .

PLUME COLLECTION STRATEGIES FOR FUTURE ICY BODY SAMPLE RETURN MISSIONS

A. Anbar, D. Brownlee, P. Tsou, 2014 .

Iridium-Catalyzed Sequential Silylation and Borylation of Heteroarenes Based on Regioselective C-H Bond Activation.

K. Takai, Masahito Murai, Naoki Nishinaka, 2018, Angewandte Chemie.

Rhenium-Catalyzed Formation of Bicyclo[3.3.1]nonene Frameworks by a Reaction of Cyclic β-Keto Esters with Terminal Alkynes.

K. Takai, Y. Kuninobu, Junya Morita, 2009 .

Rhenium-catalyzed formation of bicyclo[3.3.1]nonene frameworks by a reaction of cyclic beta-keto esters with terminal alkynes.

K. Takai, Y. Kuninobu, Junya Morita, 2009, Organic letters.

Rhenium-catalyzed regioselective synthesis of multisubstituted pyridines from β-enamino ketones and alkynes via C-C bond cleavage.

K. Takai, S. Yamamoto, Y. Kuninobu, 2012, Organic letters.

Rhenium-Catalyzed Construction of Polycyclic Hydrocarbon Frameworks by a Unique Cyclization of 1,n-Diynes Initiated by 1,1-Difunctionalization with Carbon Nucleophiles.

K. Takai, Masahito Murai, Erika Uemura, 2017, Angewandte Chemie.

Synthesis of functionalized pentacenes from isobenzofurans derived from C-H bond activation.

Y. Nishina, K. Takai, Y. Kuninobu, 2010, Organic letters.

Rhenium-catalyzed Amidation of Heteroaromatic Compounds via C–H Bond Activation

K. Takai, Y. Tokunaga, Y. Kuninobu, 2007 .

Alkylidenation of Carbonyl Compounds with gem-Dizincioalkanes Mediated with Titanium Dichloride

K. Takai, S. Matsubara, K. Utimoto, 1998 .

Rhodium-Catalyzed Synthesis of Chiral Spiro-9-silabifluorenes by Dehydrogenative Silylation: Mechanistic Insights into the Construction of Tetraorganosilicon Stereocenters.

K. Takai, Y. Kuninobu, Masahito Murai, 2016, Chemistry.

Rhenium-catalyzed regio- and stereoselective addition of two carbon units to terminal alkynes via carbon-carbon bond cleavage of β-keto sulfones.

K. Takai, Y. Kuninobu, H. Matsuzaki, 2011, Organic letters.

Manganese-catalyzed construction of tetrasubstituted benzenes from 1,3-dicarbonyl compounds and terminal acetylenes.

S. Yudha S., K. Takai, Y. Kuninobu, 2008, Organic letters.

Rhenium-catalyzed anti-Markovnikov addition reaction of methanetricarboxylates to unactivated terminal acetylenes.

K. Takai, Masahito Murai, Shunsuke Hori, 2015, Journal of the American Chemical Society.

Rhenium-catalyzed regio- and stereoselective synthesis of γ-thio-α,β-unsaturated ketones via insertion of terminal alkynes into the C-S bond.

K. Takai, Y. Kuninobu, Mitsumi Nishi, 2012, Organic letters.

Regioselective functionalization of alkanes by sequential dehydrogenation-hydrozirconation.

K. Takai, S. Yamamoto, Y. Kuninobu, 2010, Chemical communications.