Organic Sulfur Compounds. XII. The Ultraviolet and Infrared Spectra of the Substituted Benzenesulfinic Acids and Their Esters
作者:Michio Kobayashi、Nobuko Koga
DOI:10.1246/bcsj.39.1788
日期:1966.8
The ultraviolet spectra of several substituted benzenesulfinic acids and their ethyl esters have been recorded, and the assignments of the absorption have been disucssed briefly.
A CONVENIENT PREPARATION OF SULPHINIC ESTERS FROM SULPHINYL CHLORIDES AND CHLOROSULPHITES USING HEXAMETHYLDISILOXANE AS CHLORIDE ANION ACCEPTOR
作者:Jozef Drabowicz
DOI:10.1246/cl.1981.1753
日期:1981.12.5
Sulphinic esters can be obtained in high yields by the reaction of sulphinylchlorides with chlorosulphites in the presence of hexamethyldisiloxane and catalytic amount of dimethyl sulphoxide.
Sulfinyl Chlorides Through the Oxidative Chlorination of Sulfenyl Derivatives with Trimethylsilyl Acetate/Sulfuryl Chloride System
作者:J. Drabowicz、B. Bujnicki、B. Dudziński
DOI:10.1080/00397919408011719
日期:1994.5
Abstract A new and useful procedure for the synthesis of sulfinyl chlorides is described involving a combined action of trimethylsilyl acetate and sulfuryl chloride as a oxidative chlorination system on sulfenylderivatives.
The reaction of sulfinyl chlorides with (l)-N-methylephedrine alone or in the presence of tertiary amines was found to produce diastereomeric sulfinates with diastereomeric purities up to 90%. The diastereomeric ratio is strongly influenced by the nature of substituents on the sulfinyl chlorides and to some extent by the reaction conditions. In a few cases, the pure diastereomers were isolated by chromatography
Sulfonimidamide Analogs of Oncolytic Sulfonylureas<sup>,1</sup>
作者:John E. Toth、Gerald B. Grindey、William J. Ehlhardt、James E. Ray、George B. Boder、Jesse R. Bewley、Kim K. Klingerman、Susan B. Gates、Sharon M. Rinzel、Richard M. Schultz、Leonard C. Weir、John F. Worzalla
DOI:10.1021/jm960673l
日期:1997.3.1
A series of sulfonimidamideanalogs of the oncolytic diarylsulfonylureas was synthesized and evaluated for (1) in vitro cytotoxicity against CEM cells, (2) in vivo antitumor activity against subaxillary implanted 6C3HED lymphosarcoma, and (3) metabolic breakdown to the o-sulfate of p-chloroaniline. The separated enantiomers of one sulfonimidamideanalog displayed very different activities in the in