T. Ohta

发表

Asymmetric allylic substitution catalyzed by palladium–Yliphos complex

T. Ohta, H. Sasayama, O. Nakajima, 2003 .

Ruthenium-catalyzed N-alkylation and N-benzylation of aminoarenes with alcohols

Yoshihisa Watanabe, Y. Tsuji, T. Ohta, 1984 .

Homogeneous asymmetric hydrogenation of functionalized ketones

R. Noyori, M. Kitamura, T. Ohkuma, 1988 .

Ruthenium‐Catalyzed Enantioselective Synthesis of β‐Amino Alcohols from 1,2‐Diols by “Borrowing Hydrogen”

Y. Oe, T. Ohta, Anggi Eka Putra, 2013 .

Asymmetric hydrogenation of unsaturated carboxylic acids catalyzed by BINAP-ruthenium(II) complexes

R. Noyori, M. Kitamura, T. Ohta, 1987 .

Effective reductive amination of carbonyl compounds with hydrogen catalyzed by iridium complex in organic solvent and in ionic liquid

Yoshihiko Ito, Daisuke Imao, T. Ohta, 2005 .

Synthesis of optically active benzyl-α-d alcohols by asymmetric hydrogenation of benzaldehyde-α- d and its derivatives catalysed by BINAP-Ru(II) complexes

T. Ohta, H. Takaya, Takaharu Tsutsumi, 1994 .

Highly Efficient Enantioselective Synthesis of Optically Active Carboxylic Acids by Ru(OCOCH3)2[(S)-H8-BINAP]

K. Nozaki, K. Matsumura, T. Ohta, 1996 .

Enantioselective addition of diethylzinc to aldehydes catalyzed by 3,3′‐bis(2‐oxazolyl)‐1,1′‐bi‐2‐naphthol (BINOL‐Box) ligands derived from 1,1′‐bi‐2‐naphthol

A. Nagaki, T. Ohta, I. Furukawa, 2000 .

Ruthenium-Catalyzed Intramolecular Cyclization of Hetero-Functionalized Allylbenzenes.

Y. Oe, Yoshihiko Ito, T. Ohta, 2007 .

Synthesis of (R)-2-diphenylphosphino-2′-diphenylphosphinomethyl-1, 1′-binaphthyl and its use for asymmetric hydrogenation of α-alkylstyrenes

K. Inagaki, K. Nozaki, T. Ohta, 1997 .

Metal-catalyzed Cycloaddition of Small Ring Compounds

T. Ohta, H. Takaya, 1991 .

Three-Component Coupling Catalyzed by Phosphine: Preparation of α-Amino γ-Oxo Acid Derivatives

Y. Oe, T. Ohta, I. Furukawa, 2012 .

Ruthenium-catalyzed oxidation of alcohols and catechols using t-butyl hydroperoxide

Yoshihisa Watanabe, Y. Tsuji, T. Ohta, 1984 .

ASYMMETRIC HYDROFORMYLATION OF OLEFINS IN A HIGHLY CROSS-LINKED POLYMER MATRIX

T. Hiyama, K. Nozaki, F. Shibahara, 1998 .

Mild Synthesis of α-Oxoketene O.N-Acetals from β-Oxothioxo Esters and Amines

T. Ohta, I. Furukawa, H. Fujisawa, 1999 .

Novel synthesis of N-alkyl-3,4-disubstituted pyrrolidine-2,5-diones: Condensation of α-oxoketene O,N-acetals and maleic anhydride

T. Ohta, I. Furukawa, H. Fujisawa, 1997 .

BINAP-Ru(II) and BINAP-Rh(I)-catalyzed asymmetric hydrogenation of olefins without heteroatom-functionalities

T. Ohta, H. Ikegami, T. Miyake, 1995 .

Asymmetric synthesis of isoquinoline alkaloids by homogeneous catalysis

R. Noyori, M. Kitamura, Y. Hsiao, 1986 .

General asymmetric synthesis of isoquinoline alkaloids. Enantioselective hydrogenation of enamides catalyzed by BINAP-Ruthenium(II) complexes

R. Noyori, M. Kitamura, Y. Hsiao, 1994 .

Reduction of Carboxylic Acid Derivatives Using Diphenylsilane in the Presence of a Rh–PPh3 Complex

M. Kamiya, T. Ohta, I. Furukawa, 2005 .

A Simple and Convenient Synthesis of Alkyl Azides under Mild Conditions

Masato M. Ito, T. Ohta, H. Takaya, 1995 .

Bis(diarylphosphino)-1,1 binaphthyl (BINAP)-ruthenium(II) dicarboxylate complexes: new, highly efficient catalysts for asymmetric hydrogenations

R. Noyori, T. Ohta, H. Takaya, 1988 .

Asymmetric Hydrogenation of Allylic Alcohols Using BINAP‐Ruthenium Complexes: (S)‐(−)‐Citronellol

R. Noyori, M. Tokunaga, M. Kitamura, 2003 .

Enantioselective hydrogenation of allylic and homoallylic alcohols

R. Noyori, S. Inoue, T. Ohta, 1987 .

Pd/C-Catalyzed Alkylation of Heterocyclic Nucleophiles with Alcohols through the “Borrowing Hydrogen” Process

Y. Oe, T. Ohta, Anggi Eka Putra, 2015 .

Synthesis of new cationic BINAP–ruthenium(II) complexes and their use in asymmetric hydrogenation [BINAP = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl]

R. Noyori, K. Mashima, T. Ohta, 1989 .

Ruthenium-catalyzed Reduction of Carbonyl Compounds Using Formic Acid

Yoshihisa Watanabe, Y. Tsuji, T. Ohta, 1982 .

Ruthenium Catalyzed Reduction of Nitroarenes and Azaaromatic Compounds Using Formic Acid

Yoshihisa Watanabe, Y. Tsuji, T. Ohta, 1984 .

Addition reaction of arylboronic acids to aldehydes and α,β-unsaturated carbonyl compounds catalyzed by conventional palladium complexes in the presence of chloroform

M. Iizuka, T. Ohta, Tetsuya Yamamoto, 2009 .

Transition Metal-Catalyzed Cyclization of 2-Allylphenol to 2,3-Dihydro-2-methylbenzofuran without β-Elimination

H. Kitagawa, T. Ohta, I. Furukawa, 1998 .

Ruthenium-catalyzed selective synthesis of monoalkylated barbituric acids through "borrowing hydrogen" methodology

Y. Oe, T. Ohta, Anggi Eka Putra, 2017 .

A convenient synthesis of optically pure dimethyl 1,1'-binaphthalene-2,2'-dicarboxylate from 1,1'-binaphthalene-2,2'-diol

Masato M. Ito, K. Inagaki, T. Ohta, 1993 .

Synthesis of RuCl2(xantphos)L (L = PPh3, P(OPh)3, DMSO) complexes, and their catalytic activity for the addition of carboxylic acids onto olefins

Y. Oe, T. Ohta, Hirotomo Takenaka, 2015 .

Palladium catalyzed conjugate 1,4-addition of organoboronic acids to α,β-unsaturated ketones

M. Iizuka, T. Ohta, Tetsuya Yamamoto, 2006 .

Palladium-catalyzed addition of arylboronic acids to aldehydes.

T. Ohta, Tetsuya Yamamoto, Y. Ito, 2005, Organic letters.

Palladium-Catalyzed Hydroxymethylation of Aryl- and Heteroarylboronic Acids using Aqueous Formaldehyde

Y. Oe, T. Yamakawa, T. Ohta, 2014 .

Asymmetric Hydrogenation of Olefins with Aprotic Oxygen Functionalities Catalyzed by BINAP-Ru(II) Complexes

T. Ohta, T. Miyake, H. Takaya, 1995 .

The Ruthenium Catalyzed N-Alkylation of Amides with Alcohols

Yoshihisa Watanabe, Y. Tsuji, T. Ohta, 1983 .

An Efficient Synthesis of 2,3-Diaminoacid Derivatives Using Phosphine Catalyst

Nahoko Sugioka, Y. Oe, T. Ohta, 2014 .

A Simple and Convenient Synthesis of Alkyl Azides under Mild Conditions.

Masato M. Ito, T. Ohta, H. Takaya, 1995 .

Preparation of Isocyanoaryllithiums via Halogen–Lithium Exchange Reaction and Their Reaction with Various Electrophiles

T. Miyamoto, Y. Oe, T. Ohta, 2017 .

Easy access to esters with a benzylic quaternary carbon center from diallyl malonates by palladium-catalyzed decarboxylative allylation.

Daisuke Imao, T. Ohta, Masamichi Shirakura, 2007, The Journal of organic chemistry.

Reduction of α,β-Unsaturated Ketones with Diphenylsilanes Bearing Several Substituents on Their Phenyl Moiety Catalyzed by Rhodium–Phosphine Complexes

Daisuke Imao, T. Ohta, Y. Ito, 2007 .

Transition‐Metal‐Catalyzed Regioselective Alkylation of Indoles with Alcohols

Y. Oe, T. Ohta, Anggi Eka Putra, 2013 .

Lanthanide-catalyzed asymmetric 1,3-dipolar cycloaddition of nitrones to alkenes using 3,3′-bis(2-oxazolyl)-1,1′-bi-2-naphthol (BINOL-Box) ligands

T. Ohta, I. Furukawa, Hidehiko Kodama, 2000 .

Palladium(II)-Catalyzed Asymmetric 1,3-Dipolar Cycloaddition of Nitrones to 3-Alkenoyl-1,3-oxazolidin-2-ones.

T. Ohta, I. Furukawa, Hidehiko Kodama, 1999, The Journal of organic chemistry.

Selective N‐Monoalkylation of 6‐Aminouracils with Alcohols: An Environmentally Benign Protocol for the Synthesis of 6‐Alkylaminouracils

Y. Oe, T. Ohta, Anggi Eka Putra, 2018 .

Ruthenium catalyzed addition reaction of carboxylic acid across olefins without beta-hydride elimination.

Y. Oe, T. Ohta, Y. Ito, 2004, Chemical communications.

Intramolecular cyclization of phenol derivatives with CC double bond in a side chain

Y. Oe, T. Ohta, I. Furukawa, 2007 .

Ruthenium-Catalyzed Addition Reaction of Alcohols across Olefins

Y. Oe, T. Ohta, Y. Ito, 2004 .

Palladium(II)-catalyzed 1,3-dipolar cycloaddition of nitrones with enol ethers

T. Ohta, I. Furukawa, K. Hori, 1998 .

Asymmetric hydroformylation of conjugated dienes catalyzed by chiral phosphine-phosphite-Rh(I) complex

K. Nozaki, E. Shirakawa, T. Ohta, 1997 .

Asymmetric Hydroformylation of Olefins in Highly Crosslinked Polymer Matrixes

T. Hiyama, K. Nozaki, F. Shibahara, 1999 .

Asymmetric hydrogenation of unsaturated carbonyl compounds catalyzed by BINAP-Ru(II) complexes. Enantioselective synthesis of γ-butyrolactones and cyclopentanones

T. Ohta, T. Miyake, H. Takaya, 1992 .

Photocatalytic Asymmetric Reduction of 3-Methyl-2-oxobutanoic Acid with Chiral Rh(I) Complexes and Powdery Semiconductors

M. Azuma, T. Sakata, T. Ohta, 1990 .

Chapter IV.2 New Chiral Rh(I) and Ru(II) Complexes: Highly Efficient Catalysts for Homogeneous Asymmetric Hydrogenation

R. Noyori, M. Kitamura, K. Mashima, 1990 .

Stereochemistry and mechanism of the asymmetric hydrogenation of unsaturated carboxylic acids catalyzed by binap—-ruthenium(II) dicarboxylate complexes

R. Noyori, T. Ohta, H. Takaya, 1990 .

BINAP-Ruthenium(II) Dicarboxylate Complexes: New, Highly Efficient Catalysts for Asymmetric Hydrogenations.

R. Noyori, T. Ohta, H. Takaya, 1988 .

An efficient synthesis of optically active 4-methyloxetan-2-one: asymmetric hydrogenation of diketene catalysed by binap–ruthenium(II) complexes [binap = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl]

T. Ohta, T. Miyake, H. Takaya, 1992 .

Asymmetric Hydroformylation of Heterocyclic Olefins Catalyzed by Chiral Phosphine-Phosphite-Rh(I) Complexes.

K. Nozaki, E. Shirakawa, T. Ohta, 1997, The Journal of organic chemistry.

Asymmetric hydroformylation of conjugated dienes catalysed by [(R)-2-diphenylphosphino-1,1′-dinaphthalen-2′-yl][(S)-1,1′-dinaphthalene-2,2′-diyl]phosphite–rhodium(I)

T. Ohta, H. Takaya, T. Horiuchi, 1996 .

Pd/C-Catalyzed Alkylation of Heterocyclic Nucleophiles with Alcohols Through the “Borrowing Hydrogen” Process.

Y. Oe, T. Ohta, Anggi Eka Putra, 2016 .

Alkylation of the Methyl Group of 2-Methylquinolines and Similar Methyl-N-Heteroaromatics with a Ru/In Dual Catalyst

Y. Oe, T. Ohta, So Kato, 2019, Chemistry Letters.

Development of Efficient Catalytic Systems Based on the “Borrowing Hydrogen” Methodology for Regioselective Alkylation of Heterocyclic Compounds and Synthesis of Amino Alcohols

Y. Oe, T. Ohta, Anggi Eka Putra, 2016 .

α‐Amino acid: an effective ligand for asymmetric catalysis of transfer hydrogenation of ketones

T. Ohta, I. Furukawa, Shu-ichi Nakahara, 2001 .

Asymmetric synthesis of silanes with a stereogenic centre at silicon via hydrosilylation of symmetric ketones with prochiral diaryl silanes catalysed by binap–RhI complexes

Masato M. Ito, T. Ohta, H. Takaya, 1994 .

ORGANOPHOSPHOROUS CHEMISTRY: SELECTIVE TRANSFORMATION OF BENZOIN TO BENZIL, DESYL BROMIDE, OR BENZYL PHENYL KETONE

T. Ohta, I. Furukawa, Takeshi Inoue, 1998 .

α-Amino acidate-Ru(II) Catalysts for Asymmetric Transfer Hydrogenation: First Utilization of α-Amino Acids as an Efficient Ligand

T. Ohta, I. Furukawa, Shu-ichi Nakahara, 1998 .

Kinetic Resolution of Isoxazolidines by a Pd−BINAP Complex

T. Ohta, I. Furukawa, A. Kawamoto, 2002 .

Ruthenium-Catalyzed Addition Reaction of Alcohols Across Olefins.

Y. Oe, T. Ohta, Y. Ito, 2005 .

Palladium-catalyzed arylation of aldehydes with bromo-substituted 1,3-diaryl-imidazoline carbene ligand

Y. Oe, T. Yamakawa, T. Ohta, 2015 .

Asymmetric 1,4-Addition Reaction of Arylboronic Acid to Eneone Catalyzed by Palladium with Ferrocene-based Phosphine Ligand

T. Ohta, Y. Suzuma, Tetsuya Yamamoto, 2007 .

Asymmetric reduction of racemic 2-isoxazolines

T. Ohta, M. Tokizane, Kaori Sato, 2008 .

Ruthenium-catalyzed Reduction of Carbonyl Compounds Using Formic Acid

Yoshihisa Watanabe, Y. Tsuji, T. Ohta, 1982 .

Synthesis of New Cationic BINAP‐Ruthenium(II) Complexes and Their Use in Asymmetric Hydrogenation (BINAP = 2,2′‐Bis(diphenylphosphino)‐1,1′‐binaphthyl).

R. Noyori, K. Mashima, T. Ohta, 1990 .

Highly Efficient Enantioselective Synthesis of Optically Active Carboxylic Acids by Ru(OCOCH3)2((S)-H8-BINAP).

K. Nozaki, K. Matsumura, T. Ohta, 1997 .

Asymmetric Hydrogenation of Unsaturated Carboxylic Acids Catalyzed by BINAP‐Ruthenium(II) Complexes.

R. Noyori, M. Kitamura, T. Ohta, 1987 .

Recent Advances in Asymmetric Hydrogenation by Means of Transition Metal Complexes

T. Ohta, H. Takaya, 1993 .

A highly effective one-pot bicycloannulation methodology for the synthesis of berban and yohimban systems based on organotin-mediated three-component coupling (N-acylative pentadienylation of C:N bonds)

T. Hamasaki, R. Yamaguchi, T. Ohta, 1993 .

Rhodium-catalyzed reduction of esters to alcohols using diphenylsilane

M. Kamiya, T. Ohta, I. Furukawa, 1999 .

Preparation of 1,6‐naphthyridine‐2,5(1H,6H)‐diones

T. Ohta, I. Furukawa, M. Kawazome, 2001 .

Asymmetric 1,4-addition of organoboronic acids to α,β-unsaturated ketones and 1,2-addition to aldehydes catalyzed by a palladium complex with a ferrocene-based phosphine ligand

Y. Oe, T. Ohta, Y. Suzuma, 2009 .

Addition Reaction of Arylboronic Acids to Aldehydes and α,β-Unsaturated Carbonyl Compounds Catalyzed by Conventional Palladium Complexes in the Presence of Chloroform.

M. Iizuka, T. Ohta, Tetsuya Yamamoto, 2009 .

An Anionic Dinuclear BINAP−Ruthenium(II) Complex: Crystal Structure of [NH2Et2][{RuCl((R)-p-MeO-BINAP)}2(μ-Cl)3] and Its Use in Asymmetric Hydrogenation

K. Nozaki, K. Mashima, T. Ohta, 1996 .

Optically active palladium-catalyzed asymmetric amination of aryl halide

Daisuke Imao, T. Ohta, I. Furukawa, 2005 .

Transition Metal‐Catalyzed Cyclization of 2‐Allylphenol to 2,3‐Dihydro‐2‐methylbenzofuran Without β‐Elimination.

H. Kitagawa, T. Ohta, I. Furukawa, 1999 .

Synthesis and characterization of mixed-ligand ruthenium(III) complexes with oxalate and acetylacetonate ions

Yoshimasa Hoshino, A. Endo, Y. Yukawa, 2004 .

Reductive cleavage of the C-O bond of acetals and orthoesters: reduction by silane in the presence of a Rh-PPh3 complex.

T. Ohta, I. Furukawa, Tsugumi Michibata, 2003, Chemical communications.

A Molecular Probe with Both Chromogenic and Fluorescent Units for Detecting Serine Proteases

Y. Oe, T. Ohta, Yushin Nakamura, 2021, Molecules.

Palladium-Catalyzed Asymmetric 1,3-Dipolar Cycloaddition of Nitrones to Olefins.

T. Ohta, I. Furukawa, Hidehiko Kodama, 1996 .

Practical synthesis of androgen: the efficient transformation of 17-oxo group to 17α-hydroxy group

T. Ohta, I. Furukawa, Huyue Zhang, 1998, Steroids.

A simple quantitative chiral analysis of amino acid esters by fluorine-19 nuclear magnetic resonance using the modified James-Bull method.

Y. Oe, T. Ohta, N. Hamaguchi, 2018, Chirality.

Palladium(II)‐Catalyzed Asymmetric 1,3‐Dipolar Cycloaddition of Nitrones to 3‐Alkenoyl‐1,3‐oxazolidin‐2‐ones.

T. Ohta, I. Furukawa, Hidehiko Kodama, 1999 .

Palladium(II)-Catalyzed 1,3-Dipolar Cycloaddition of Nitrones with Enol Ethers.

T. Ohta, I. Furukawa, K. Hori, 1999 .

Palladium‐Catalyzed Asymmetric 1,3‐Dipolar Cycloaddition of Nitrones to Olefins.

T. Ohta, I. Furukawa, Hidehiko Kodama, 1996 .

Palladium-catalyzed asymmetric allylic substitution using novel phosphino-ester (PHEST) ligands with 1,1′-binaphthyl skeleton

T. Ohta, I. Furukawa, Hidehiko Kodama, 2000 .

New chiral ruthenium complexes for asymmetric catalytic hydrogenations

R. Noyori, K. Mashima, T. Ohta, 1990 .

New 2,2′-Bis(diphenylphosphino)-1,1′-binaphthyl—Ru(II) Complexes for Asymmetric Catalytic Hydrogenation

K. Mashima, T. Ohta, H. Takaya, 1992 .

Synthesis of 3-Ethoxyisoxazole Derivatives and 3-Ethoxy-1H-pyrazole Derivatives from β-Oxo Thionoesters

T. Ohta, I. Furukawa, H. Fujisawa, 2000 .

Addition reaction of 2-phenylbenzoic acid onto unactivated olefins catalyzed by Ru(II)–xantphos catalysis

Y. Oe, T. Ohta, Y. Ito*, 2010 .

Organolanthanide-Catalyzed Imine Hydrogenation. Scope, Selectivity, Mechanistic Observations, and Unusual Byproducts

T. Marks, C. Stern, T. Ohta, 1997 .