A previous report has established the intermediacy of a sulfide-sulfonate ester in the one-pot conversion of an aryl mercaptan and a sulfonate ester into the corresponding trithioorthoformate. This report describes evidence for the sequential intermediacy of a bissulfide-sulfonate ester and a dithiosulfène in the conversion of the sulfide-sulfonate ester into the trithioorthoformate. A new sulfonate ester is shown to give the highest yield of trithioorthoformate. Key words: single electron transfer, sulfonate esters, sulfenes.
一份先前的报告已经确认了磺化物-磺酸酯在芳基巯基和磺酸酯一锅法转化为相应的三硫代正甲酸酯中间体的中介作用。本报告描述了磺化物-磺酸酯转化为三硫代正甲酸酯过程中双硫化物-磺酸酯和二硫代烯中间体的顺序中介作用的证据。显示一种新的磺酸酯提供了最高产率的三硫代正甲酸酯。关键词:单电子转移,磺酸酯,烯烃。