Furukawa M, Kabashima S, Okawara T, Yamasaki T. Synthesis of Novel 1,3-Thiazolidines and 1,3,4-Thiadiazolines from Thiocarbohydrazines. HETEROCYCLES 1990. [DOI: 10.3987/com-90-5380] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]

Okawara T, Ehara S, Matsumoto S, Okamoto Y, Furukawa M. The 2 : 2 adducts from glutaraldehyde and 1-substituted ethylenediamines. ACTA ACUST UNITED AC 1990. [DOI: 10.1039/p19900002160] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]

Okawara T, Uchiyama K, Okamoto Y, Yamasaki T, Furukawa M. Simple preparation of terminal N-monoprotected triamines using fused piperazines. ACTA ACUST UNITED AC 1990. [DOI: 10.1039/c39900001385] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]

Kihara Y, Kabashima S, Uno K, Okawara T, Yamasaki T, Furukawa M. Oxidative Heterocyclization Using Diethyl Azodicarboxylate. SYNTHESIS-STUTTGART 1990. [DOI: 10.1055/s-1990-27081] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]

Okawara T, Ohkawara T, Matsumoto S, Yamasaki T, Furukawa M. Convenient Preparations of 1,8-Dioxo-6-thioxopimerazino[1,2-c]perhydropyrimidines. HETEROCYCLES 1989. [DOI: 10.3987/com-89-5025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]

Okawara T, Tateyama Y, Yamasaki T, Furukawa M. A new route to 1,2,4- triazoles and 1,3,4- thiadiazoles from 1-acylbithiourea. J Heterocycl Chem 1988. [DOI: 10.1002/jhet.5570250405] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]

Furukawa M, Okawara T, Shono T, Yamasaki T, Fiurukawa M. Synthesis of New Uraciles Having N-Amino-b-,g- and d-lactams. HETEROCYCLES 1988. [DOI: 10.3987/com-88-4553] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]

Okawara T, Kanazawa Y, Yamasaki T, Furukawa M. Convenient Syntheses of 1-Acyl-2-alkylhydrazines. SYNTHESIS-STUTTGART 1987. [DOI: 10.1055/s-1987-27883] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]

Furukawa M, Okawara T, Kato R, Yamasaki T, Yasuda N. The Preparation of Aza-b-lactam, 1,3,4-Thiadiazine, b-Lactam, and 1,3,4-Thiadiazepine Derivatives by the Reaction of Thiosemicarbazidines with a- and b-Haloacyl Halides. HETEROCYCLES 1986. [DOI: 10.3987/r-1986-04-0885] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]

Furukawa M, Sato K, Okawara T. REACTIONS OF DIAMINO DISULFIDES, DIAMINO SULFIDES, AND DIAMINO SULFOXIDES WITHp-TOLUENESULFINIC ACID. CHEM LETT 1982. [DOI: 10.1246/cl.1982.2007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]

Okawara T, Nakayama K, Furukawa M. PREPARATION OFN-THIOAMIDO-β-LACTAM AND 2-THIOHEXAHYDROPYRIMIDIN-4-ONE DERIVATIVES FROM N-MONOSUBSTITUTED THIOUREAS AND β-HALOACYL HALIDES. CHEM LETT 1982. [DOI: 10.1246/cl.1982.1791] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]

Okawara T, Nakayama K, Furukawa M. Facile Synthesis and Self-Condensation of 4-Chloro-3-imino-5-oxothiazolidines. SYNTHESIS-STUTTGART 1982. [DOI: 10.1055/s-1982-30067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]

Furukawa M, Okawara T, Nakayama K. A Facile Syntheses of Thiazolidin-5-ones and Their Structural Assignment. HETEROCYCLES 1982. [DOI: 10.3987/r-1982-09-1571] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]

Okawara T, Noguchi Y, Matsuda T, Furukawa M. CONVENIENT SYNTHESES OF PIPERAZINE-2,5-DIONES AND LACTAMS FROM HALOCARBOXAMIDES USING PHASE TRANSFER CATALYSTS. CHEM LETT 1981. [DOI: 10.1246/cl.1981.185] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]

Kametani T, Okawara T. Studies on the syntheses of heterocyclic compounds. Part 687 Asymmetric synthesis of salsolidire. JOURNAL OF THE CHEMICAL SOCIETY. PERKIN TRANSACTIONS 1 1977:579-81. [PMID: 557488 DOI: 10.1039/p19770000579] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]

Kametani T, Okawara T. Asymmetric Synthesis of Salsolidine. HETEROCYCLES 1974. [DOI: 10.3987/r-1974-05-0571] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]

Harada K, Okawara T, Matsumoto K. Sterically Controlled Syntheses of Optically Active Organic Compounds. XIX. Asymmetric Syntheses of Amino Acids by the Strecker Reaction. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1973. [DOI: 10.1246/bcsj.46.1865] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]

Harada K, Iwasaki T, Okawara T. Sterically Controlled Syntheses of Optically Active Organic Compounds. XXI. The Temperature Dependence of Hydrogenolytic Asymmetric Transamination between Optically Active Phenylglycine and α-Keto Acids. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1973. [DOI: 10.1246/bcsj.46.1901] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]

Okawara T, Harada K. Sterically Controlled Syntheses of Optically Active Organic Compounds. XX. Synthesis of Optically Active Alanine from α-Bromopropionamides. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1973. [DOI: 10.1246/bcsj.46.1869] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]

Harada K, Okawara T. Sterically controlled syntheses of optically active organic compounds. 28. Asymmetric syntheses of amino acids by addition of hydrogen cyanide to the Schiff bases. J Org Chem 1973;38:707-10. [PMID: 4688472 DOI: 10.1021/jo00944a020] [Citation(s) in RCA: 47] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]

Harada K, Okawara T. Sterically Controlled Syntheses of Optically Active Organic Compounds. XVII. Asymmetric Syntheses of Amino Acids by Addition of Benzoyl Cyanide to the Azomethine Compounds. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1973. [DOI: 10.1246/bcsj.46.191] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]

Okawara T, Harada K. Sterically controlled syntheses of optically active organic compounds. XV. Syntheses of optically active aspartic acid through -lactam. J Org Chem 1972;37:3286-9. [PMID: 5072898 DOI: 10.1021/jo00986a020] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]

Hayashi S, Furukawa M, Fujino Y, Okawara T. Studies on application of amino acid as medicinal agent. II. Reaction of amino acid ester with difunctional Grignard reagent. Chem Pharm Bull (Tokyo) 1969;17:1054-7. [PMID: 5821769 DOI: 10.1248/cpb.17.1054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]

Hayashi S, Furukawa M, Fujino Y, Matsuishi N, Okawara T. Studies on application of amino acid as medicinal agent. I. Syntheses of amino-tert-alcohol derivatives. Chem Pharm Bull (Tokyo) 1969;17:145-9. [PMID: 5771621 DOI: 10.1248/cpb.17.145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]