Y. Kikugawa

发表

A Convenient Synthesis of 1-Alkyl-1-phenylhydrazines from N -Aminophthalimide

Takeshi Sakamoto, S. Nara, T. Sakamoto, 2003 .

One-pot reductive amination of aldehydes and ketones with α-picoline-borane in methanol, in water, and in neat conditions

Shinya Sato, T. Sakamoto, Etsuko Miyazawa, 2004 .

Trifluoroacetaldehyde: A useful industrial bulk material for the synthesis of trifluoromethylated amino compounds

H. Mimura, T. Sakamoto, Y. Kikugawa, 2010 .

A Novel Conversion of N-Aryl-N-Methoxyamides into N-Arylhydroxamic Acids Using Alcl3/Thiol System

M. Kawase, Y. Kikugawa, M. Shimada, 1990 .

Electrophilic aromatic substitution with a nitrenium ion generated from N-chloro-N-methoxyamides. Application to the synthesis of 1-methoxy-2-oxindoles

M. Kawase, Y. Kikugawa, 1984 .

Synthesis of 6‐methoxyindoles and indolines. Regioselective c‐6 bromination of indolines and subsequent nucleophilic substitution with a methoxyl group

Y. Kikugawa, Y. Miyake, 1983 .

Introduction of a hydroxy group at the para position and N-iodophenylation of N-arylamides using phenyliodine(III) bis(trifluoroacetate).

T. Sakamoto, Etsuko Miyazawa, Y. Kikugawa, 2002, The Journal of organic chemistry.

A facile regioselective aromatic fluorination of N-aryl-N-hydroxyamides with diethylaminosulfur trifluoride (DAST)

Kazuhiro Matsumoto, T. Sakamoto, Y. Kikugawa, 1992 .

Dehydrogenation of indolines to indoles via azasulphonium salts or N-chloramines

M. Kawase, Y. Kikugawa, Y. Miyake, 1984 .

Application of Stable Nitrenium Ions to Preparative Organic Chemistry

Y. Kikugawa, 2009 .

Synthesis of Formamidines from Carbodiimides with Sodium Borohydride in Isopropanol

Y. Kikugawa, S. Yamada, K. Kaji, 1978 .

A NEW SYNTHESIS OF SULFIDES FROM THIOLS AND ALDEHYDES OR KETONES WITH PYRIDINE-BORANE IN TRIFLUOROACETIC ACID

Y. Kikugawa, 1981 .

Introduction of a methoxyl group into indoles and 2,3‐dihydroindoles. A new synthesis of 5‐hydroxytryptamine (serotonin)

Y. Kikugawa, Kunio Saito, 1979 .

Chemistry of Diborane and Sodium Borohydride. VII. Reduction of α-Amino Acid Amides with Sodium Borohydride

I. Saito, Y. Kikugawa, S. Yamada, 1970 .

Chemistry of Diborane and Sodium Borohydride. VI. The Reaction of Amides with Sodium Borohydride

S. Ikegami, Y. Kikugawa, S. Yamada, 1969 .

REDUCTION OF ACID AMIDES TO AMINES WITH SODIUM BOROHYDRIDE.

S. Ikegami, Y. Kikugawa, S. Yamada, 1965, Chemical & pharmaceutical bulletin.

A COMBINATION OF SODIUM BOROHYDRIDE WITH ANILIDES AS A NEW REAGENT FOR ESTER REDUCTION

Y. Kikugawa, 1975 .

Synthesis of Tosylhydrazines by the Reduction of Tosylhydrazones with Pyridine-Borane

M. Kawase, Y. Kikugawa, 1979 .

A New and Convenient Synthesis of 3-Aryl-3-hydroxyisoindol-1-ones and Their Aza Analogs

Yuko Saito, T. Sakamoto, Y. Kikugawa, 2001 .

A New and Convenient Synthesis of 3-Aryl-3-hydroxyisoindol-1-ones and Their Aza Analogues

Yuko Saito, T. Sakamoto, Y. Kikugawa, 2001 .

Chemistry of Amine-Boranes. VIII. Reduction of Aldehydes and Ketones with Pyridine-Borane in Trifluoroacetic Acid

Y. Kikugawa, Yoshie Ogawa, 1979 .

SELECTIVE REDUCTION OF OXIMES WITH PYRIDINE-BORANE

M. Kawase, Y. Kikugawa, 1977 .

A Facile N-Alkylation of Imidazoles and Benzimidazoles

Y. Kikugawa, 1981 .

The Chemistry of Diborane and Sodium Borohydride. XI. The Reaction of Isoquinoline Reissert Compounds with Sodium Borohydride

I. Saito, Y. Kikugawa, S. Yamada, 1974 .

Synthesis of carbazoles from N-(N,N-diarylamino)phthalimides with aluminum chloride via diarylnitrenium ions.

T. Sakamoto, Y. Kikugawa, Y. Aoki, 2001, The Journal of organic chemistry.

Synthesis of spirodienones by intramolecular ipso-cyclization of N-methoxy-(4-halogenophenyl)amides using [hydroxy(tosyloxy)iodo]benzene in trifluoroethanol.

T. Sakamoto, Etsuko Miyazawa, Y. Kikugawa, 2003, The Journal of organic chemistry.

NEW METHOD FOR THE SYNTHESIS OF NITRILES FROM O-ARYLALDOXIMES WITH ZrCl4

T. Sakamoto, Etsuko Miyazawa, Y. Kikugawa, 2002 .

N-Phenylation of N-Arylaminophthalimides with Triphenylbismuth and Cupric Acetate: A Convenient Synthesis of 1-Aryl-1- Phenylhydrazines

Yuko Saito, T. Sakamoto, Y. Kikugawa, 2000 .

A new intramolecular migration of the imino group of O-arylketoximes to the aryl group under the Beckmann condition

T. Sakamoto, Etsuko Miyazawa, Y. Kikugawa, 2001 .

A NEW DEHYDROGENATION REACTION OF INDOLINES TO INDOLES VIA AZASULPONIUM SALTS

M. Kawase, Y. Kikugawa, 1981 .

The reaction of cyanopyridines with sodium borohydride in aprotic solvents.

Y. Kikugawa, M. Kuramoto, S. Yamada, 1969, Tetrahedron letters.

N-methoxydiacetamide: A new selective acetylating agent

M. Kawase, T. Sakamoto, Y. Kikugawa, 1990 .

A new formylating reagent : N-(diethylcarbamoyl)-N-methoxyformamide

T. Sakamoto, Y. Kikugawa, Kimiyo Mitsui, 1992 .

Stereoselective Synthesis of cis-5-Alkyl-(S)-prolines from (S)-Pyroglutamic Acid via 5-Alkyl-5-hydroxy-(S)-prolines

Hao Li, T. Sakamoto, Y. Kikugawa, 1997 .

Reaction of 1-Hydroxyphthalimide Derivatives with Aluminum Chloride in Benzene.

T. Sakamoto, Y. Kikugawa, Keita Matsumoto, 1996 .

One-Pot Reductive Amination of Aldehydes and Ketones with α-Picoline-borane in Methanol, in Water, and in Neat Conditions.

Shinya Sato, T. Sakamoto, Etsuko Miyazawa, 2004 .

Synthesis of Aldehydes from Carboxylic Acids via N-Methoxyimidoyl Bromides: Deoximation of O-Methyloximes

T. Sakamoto, Y. Kikugawa, 1993 .

Determination of configurations of N-methoxyimidoyl halides via catalytic hydrogenation. Synthesis of pure (E)-aldoximes

T. Sakamoto, Y. Kikugawa, K. Okamoto, 1992 .

A New Synthesis of Nitriles from N-Alkoxyimidoyl Halides with Zinc

T. Sakamoto, Y. Kikugawa, Hirotoshi Mori, 1992 .

Chemistry of amine–boranes. Part 5. Reduction of oximes, O-acyloximes, and O-alkyl-oximes with pyridine–borane in acid

M. Kawase, Y. Kikugawa, 1979 .

Amino Acids and Peptides. XIII. A New Approach to the Biogenetictype, Asymmetric Synthesis of Indole and Isoquinoline Alkaloids by 1,3-Transfer of Asymmetry

Y. Kikugawa, T. Shioiri, H. Akimoto, 1974 .

Side Reaction during Deprotection of Tryptophan Derivatives by Catalytic Transfer Hydrogenation in Formic Acid

Y. Kikugawa, M. Kashimura, 1982 .

Catalytic Transfer Hydrogenation of Indoles to Indolines in Formic Acid

Y. Kikugawa, M. Kashimura, 1982 .

Synthesis of N-Phenylalkanehydrazonoyl Chlorides

T. Sakamoto, Y. Kikugawa, 1988 .

SELECTIVE REDUCTION OF INDOLES WITH PYRIDINE-BORANE

M. Kawase, Y. Kikugawa, 1977 .

A NEW SYNTHESIS OF ETHERS BY THE REDUCTION OF ALDEHYDES WITH PYRIDINE-BORANE IN TRIFLUOROACETIC ACID

Y. Kikugawa, 1979 .

Reduction of Alkylindoles with Sodium Borohydride-Aluminium Chloride in Pyridine

Y. Kikugawa, 1978 .

A one-pot procedure for trifluoroacetylation of arylamines using trifluoroacetic acid as a trifluoroacetylating reagent

T. Sakamoto, Y. Kikugawa, J. Ohtaka, 2009 .

A novel ring expansion observed during the intramolecular cyclisation with N-methoxy-N-acylnitrenium ions generated from N-methoxyamides: an expedient synthesis of 1,5-benzodiazonine derivatives

M. Kawase, Y. Kikugawa, 1991 .

Intramolecular cyclization with nitrenium ions generated by treatment of N-acylaminophthalimides with hypervalent iodine compounds: formation of lactams and spiro-fused lactams.

A. Nagashima, T. Sakamoto, Etsuko Miyazawa, 2003, The Journal of organic chemistry.

Reaction of sec-Amides with Metal Hydrides. I. A Combination of Sodium Borohydride with Anilides as a Novel Reducing Reagent for Carbonyl Compounds

Y. Kikugawa, 1976 .

The reaction of substituted ureas with sodium borohydride in pyridine.

Y. Kikugawa, H. Nagashima, S. Yamada, 1969, Tetrahedron letters.

Synthesis of N-Alkylimidazoles from N-Alkyloxazolium Salts

Y. Kikugawa, L. Cohen, 1976 .

A Total Synthesis of Nannochelin A. A Short Route to Optically Active Nω-Hydroxy-α-amino Acid Derivatives

Hao Li, T. Sakamoto, Y. Kikugawa, 1996 .

Electrophilic aromatic substitution with N-methoxy-N-acylnitrenium ions generated from N-chloro-N-methoxy amides: syntheses of nitrogen heterocyclic compounds bearing a N-methoxy amide group

M. Kawase, Y. Kikugawa, Kitamura Takahiro, 1989 .

A Total Synthesis of Nannochelin A. A Short Route to Optically Active Nω-Hydroxy-α-amino Acid Derivatives.

Hao Li, T. Sakamoto, Y. Kikugawa, 1997 .

Migration of the Hydroxyl Group of N-Hydroxy-N-phenylamides to the Phenyl Group with Tertiary Phosphines and Tetrachloromethane. A Novel Transhydroxylation Reaction.

Y. Kikugawa, Kimiyo Mitsui, 1993 .

Electrophilic Aromatic Substitution with N-Methoxy-N-acylnitrenium Ions Generated from N-Chloro-N-methoxyamides: Syntheses of Nitrogen Heterocyclic Compounds Bearing a N-Methoxyamide Group.

M. Kawase, Y. Kikugawa, T. Kitamura, 1990 .

Intramolecular Cyclization of Alkylhydroxylamines in Acids

M. Kawase, Y. Kikugawa, 1981 .

Total synthesis of eupolauramine

M. Kawase, T. Sakamoto, Y. Kikugawa, 1989 .

Intramolecular Cyclization with Nitrenium Ions Generated from N-Chloro-N-methoxyamides in Neutral Conditions

Y. Kikugawa, M. Shimada, 1987 .

A Simple Synthesis ofN-Acyl- andN-Sulfonylindoles

Y. Kikugawa, 1981 .

PREPARATION OF RING-SUBSTITUTED PHENOXYAMINE DERIVATIVES

T. Sakamoto, Etsuko Miyazawa, Y. Kikugawa, 1997 .

A CONVENIENT N-PROTECTION OF PYROGLUTAMATE DERIVATIVES

Hao Li, T. Sakamoto, Y. Kikugawa, 1995 .

Methoxylation of Bromo-1, 2, 3, 4-tetrahydrocarbazoles. Oxidation and Subsequent Rearrangement of 1, 2, 3, 4-Tetrahydrocarbazoles to Spiro-(cyclopentane-1, 2'-indolin)-3'-ones

M. Kawase, Y. Kikugawa, Y. Miyake, 1981 .

Reaction of phenylhydrazines with arenes in the presence of aluminium trichloride

A. Ohwada, S. Nara, T. Sakamoto, 2001 .

A New Synthesis of N.alpha.,N.delta.-Protected N.delta.-Hydroxycycloornithine and Its Homolog from an L-Glutamic Acid Derivative

T. Sakamoto, Y. Kikugawa, 1994 .

Reaction of Phenylhydrazines with Arenes in the Presence of Aluminum Trichloride.

A. Ohwada, S. Nara, T. Sakamoto, 2002 .

A New Reductive Modification of Hen's Egg White Lysozyme with Pyridine-borane

Y. Kikugawa, T. Kuwae, M. Kurata, 1980 .

A New Synthesis of Nitriles from N-Methoxy Imidoyl Bromides by Photolysis

T. Sakamoto, Y. Kikugawa, L. Fu, 1993 .

A simple synthesis of 5-methoxyindole and 5-methoxy-2-oxindole

T. Sakamoto, Y. Kikugawa, Isao Hosoda, 1988 .

A New Synthesis of Nitriles (IV), (VI) from N-Methoxy Imidoyl Bromides by Photolysis.

T. Sakamoto, Y. Kikugawa, L. Fu, 1993 .

A New Synthesis of N-Alkoxy-2-ethoxyarylacetamides from N-Alkoxy-N-chloroarylacetamides with Triethylamine in Ethanol.

T. Sakamoto, Y. Kikugawa, M. Shimada, 1993 .

A Simple Synthesis of N-Alkylindoles

Y. Kikugawa, Y. Miyake, 1981 .

Electrophilic aromatic substitution with a nitrenium ion generated from N-chloro-N-methoxyamides. Application to the synthesis of 1-methoxy-2-oxindoles

M. Kawase, Y. Kikugawa, 1984 .