Faculty Profiles - OKAUCHI Tatsuo

Papers - OKAUCHI Tatsuo

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A Facile Synthesis of 1-H-2, 2-Difluorovinylphosphorus Compounds from 2, 2, 2-Trifluoroethyl Trifluoromethanesulfonate and Substitutions of Their Vinylic Fluorines Reviewed

Journal of Fluorine Chemistry 97 ( 1-2 ) 109 - 114 1999.04

Vinylic C-F Bond Activation : Generation and Cross-Coupling Reactions of 1-Fluorovinylzirconocene Reviewed

Tetrahedron Letters 40 ( 40 ) 7261 - 7265 1999.04

Synthetic Utilization of α-Phosphonovinyl Anions Reviewed

Phosphorus, Sulfur and Silicon 144-146 689 - 692 1999.04

Discovery of Novel Antitumor Sulfonamides Targeting G1 Phase of the Cell Cycle Reviewed

Journal of Medicinal Chemistry 42 ( 19 ) 3789 - 3799 1999.04

Synthetic utilization of α-phosphonovinyl anions Reviewed

Minami T., Kouno R., Okauchi T., Nakamura M., Ichikawa J.

Phosphorus, Sulfur and Silicon and Related Elements 144-146 689 - 692 1999.01

Synthesis and Synthetic Utilization of α-Functionalized Vinylphosphonates Bearing β-Oxy or β-Thio Substituents Reviewed

Kouno R., Okauchi T., Nakamura M., Ichikawa J., Minami T.

Journal of Organic Chemistry 63 ( 18 ) 6239 - 6246 1998.09

Fluorine-directed Nazarov cyclizations 2: Regioselective synthesis of 5-trifluoromethyl-2-Cyclopentenones Reviewed

Ichikawa J., Fujiwara M., Okauchi T., Minami T.

Synlett ( 8 ) 927 - 929 1998.08

Fluorine-Directed Nazarov Cyclizations 2 : Regioselective Synthesis of 5-Trifluoromethyl-2-2cyclopentenones Reviewed

Synlett ( 8 ) 927 - 929 1998.04

Synthesis and Synthetic Utilization of α-Functionalized Vinylphosphonates Bearing β-Oxy or β-Thio Substituents Reviewed

The Journal of Organic Chemistry 63 ( 18 ) 6239 - 6246 1998.04

Lewis Acid-Catalyzed Intramodecular [2+2]Cydoaddition of α-Ester-Substituted Conjugated Dienyl and Trienylphosphonates. New Synthesis of Functionalized Cydic Terpenoids Reviewed

The Journal of Organic Chemistry 62 ( 24 ) 8419 - 8424 1997.04

5-endo-Trigonal Cyclization of o-Substituted gem-Difluorostyrenes : Syntheses of 2-Fluorinated Indoles, Benzo[b]furans, and Benzo[b]thiophenes Reviewed

Chemical Communications ( 16 ) 1537 - 1538 1997.04

2-Phosphono-1,1,4,4-tetrathio-1,3-butadienes. Synthesis and Synthetic Application to Highly Functionalized Dienes and Heterocycles Reviewed

Bulletin des Soci(]J1117[)t(]J1117[)s Chimique Belges 106 ( 9-10 ) 525 - 532 1997.04

5-endo-Trigonal cyclization of o-substituted gem-difluorostyrenes: Syntheses of 2-fluorinated indoles, benzo[b]furans and benzo[b]thiophenes Reviewed

Ichikawa J., Wada Y., Okauchi T., Minami T.

Chemical Communications ( 16 ) 1537 - 1538 1997.01

Lewis Acid-Catalyzed Intramolecular [2 + 2] Cycloaddition of α-Ester-Substituted Conjugated Dienyl- And Trienylphosphonates. New Synthesis of Functionalized Cyclic Terpenoids Reviewed

Okauchi T., Kakiuchi T., Kitamura N., Utsunomiya T., Ichikawa J., Minami T.

Journal of Organic Chemistry 62 ( 24 ) 8419 - 8424 1997.01

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

α-Ester-substituted 1,3-dienylphosphonates 7 and 8, prepared by the Knoevenagel condensation, underwent intramolecular [2 + 2] cycloaddition in the presence of Lewis acid to form bicyclo[4.2.0] (26-57% yield) and bicyclo[3.2.0]skeleton (14-38% yield), respectively. Similar treatment of homologous 1,3-dienylphosphonate 11 and 1,3,5-trienylphosphonate 12 resulted in the formation of ionone derivatives (30-94% yield). The intramolecular cycloaddition reaction was applicable to several conjugated dienes bearing an ester group.

DOI： 10.1021/jo971153g

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Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0000736055&origin=inward

Synthesis and synthetic application of phosphonoketene dithioacetals. New synthesis of dithioallenes and (α-dithiocarboxyvinyl)phosphonates Reviewed

Minami T., Okauchi T., Matsuki H., Nakamura M., Ichikawa J., Ishida M.

Journal of Organic Chemistry 61 ( 23 ) 8132 - 8140 1996.11

Development of Chiral Phosphine Ligands Bearing a Carboxyl Group and Their Application to Catalytic Asymmetric Reaction Reviewed

Tetrahedron : Asymmetry 6 ( 10 ) 2469 - 2474 1996.04

Novel 2, 2-Difluorovinylzirconocene : A Facile Synthesis of Monosubstituted gem-Difluoroolefins via Its Cross-Coupling Reaction Reviewed

Tetrahedron Letters 37 ( 48 ) 8799 - 8802 1996.04

synthesis and Synthetic Application of Phosphonoketene Dithioacetals. New Synthesis of Dithioallenes and (α-Dithio carboxyvinyl) phosphonatis. Reviewed

The Journal of Organic Chemistry 23 ( 61 ) 8132 - 8140 1996.04

Development of chiral phosphine ligands bearing a carboxyl group and their application to catalytic asymmetric reaction Reviewed

Minami T., Okada Y., Otaguro T., Tawaraya S., Furuichi T., Okauchi T.

Tetrahedron: Asymmetry 6 ( 10 ) 2469 - 2474 1995.10

Novel 6-5 Fused Ring Heterocycle Antifolates with Potent Antitumor Activity : Bridge Modifications and Heterocyclic Benzoyl Isosters of 2, 4-Diamino-6, 7-dihydro-5H-cyclopenta[d]pyrimidine Antifolate Reviewed

Chemical & Pharmaceutical Bulletin 43 ( 5 ) 829 - 841 1995.04

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