A Simple Entry to Fused <i>N</i>-Aryl 1,2-Thiazetidine-<i>S</i>-Oxides: Thermal Isomerisation to 1,4-Thiazine-<i>S</i>-Oxides and Nucleophilic Ring-Opening with Alcohols and Amines
作者:Ronald Warrener、Ananda Amarasekara
DOI:10.1055/s-1997-737
日期:1997.2
We show that fused 1,2-thiazetidine-S-oxides can be produced in one step from readily available aryl sulfonylamines by cycloaddition with quadricyclane; these adducts undergo smooth rearrangement to fused 1,4-thiazines-S-oxides on heating, and can be ring-opened with alcohols to form cis-1,2-arylamino sulfinic esters and cis-1,2-arylamino sulfinamides on treatment with amines.
我们表明,融合的1,2-噻唑烷-S-氧化物可以通过与四环烯的环加成反应,从易得的芳基磺酰胺一次性合成;这些加合物在加热时会顺利重排形成融合的1,4-噻嗪-S-氧化物,并且可以通过醇进行开环反应,生成顺式-1,2-芳基氨基 sulfinic 酯和顺式-1,2-芳基氨基 sulfinamide。