One-pot syntheses of sulfinates, sulfinamides, and thiosulfinates by O-, N-, and S-sulfinylations of alcohols, amines, and thiols with p-toluenesulfinic acid in the presence of various activating reagents, phenyl phosphorodichloridate (1), diphenyl phosphoro-chloridate (2), triphenylphosphine N-chlorosuccinimide (NCS) (3), and 3-(phthalimidoxy)-1, 2-benzoisothiazole 1, 1-dioxide (4), were investigated. All of these reagents were reasonably effective for O-and S-sulfinylation, but ineffective for N-sulfinylation. Among them, the reagents 1 and 2 were slightly more efficient than the others.
Mode of oxidations of organosulfur compounds: Example of nucleophilic oxygenations of thiolsulfinates
作者:Shigeru Oae、Toshikazu Takata
DOI:10.1016/s0040-4039(00)77448-x
日期:1980.1
Two types of oxygenative oxidations (Nucleophilic and Electrophilic Oxidations) of sulfur atom are proposed and a typical mode of nucleophilic oxidation is shown with a few unsymmetrical thiolsulfinates.
Facile Conversion of Thiosulfinic<i>S</i>-Ester to Sulfinic Ester
作者:Toshikazu Takata、Shigeru Oae
DOI:10.1246/bcsj.55.3937
日期:1982.12
Thiosulfinic S-testers are readily converted to the corresponding sulfinic eaters in good yields by treating in alcohols with a catalytic amount of I2, Br2, or HCl in the presence of H2O2, replacing sulfenyl groups by alcohols. The mechanism of this reaction is also discussed.
Thiosulfinsäurederivate, und die Verwendung von Thiosulfinsäurederivaten zur Herstellung von Arzneimitteln für die Behandlung von Entzündungserkrankungen
申请人:BOEHRINGER MANNHEIM GMBH
公开号:EP0299424A2
公开(公告)日:1989-01-18
Die Erfindung betrifft Thiosulfinsäurederivate, Arzneimittel enthaltend diese Verbindungen und ihre Verwendung in der Medizin. Es wurde gefunden daß Thiosulfinsäurederivate ausgezeichnete entzündungshemmende Eigenschaften aufweisen. Insbesondere vorteilhaft erwiesen sich die Verbindungen in der Behandlung von PAF induzierten Entzündungsvorgängen des Brochialraumes.