作者:Theodore Cohen、Fangping Chen、Tomasz Kulinski、Saverio Florio、Vito Capriati
DOI:10.1016/0040-4039(95)00752-x
日期:1995.6
Reductive ring cleavage of thiochromane and benzodihydrothiophene by the radicalanion 4,4′-di-tert-butylbiphenylide (LDBB) leads to organolithium compounds bearing a lithium arylthiolate group. The adducts of the latter with aldehydes and ketones undergo ring closure when treated under appropriate acidic conditions. The result is a two-pot one-carbon subsititutive ring expansion of the original sulfur
通过自由基阴离子4,4'-二叔丁基联苯醚(LDBB)对硫代苯并二氢噻吩和苯并二氢噻吩进行的还原环裂解可生成带有芳基硫醇锂基团的有机锂化合物。当在适当的酸性条件下处理时,后者与醛和酮的加合物发生闭环。结果是原始硫杂环的两锅一碳取代基环膨胀。