Uso de líquido iônico de selenito na preparação de sulfetos vinílicos

Abstract

In this work a cleaner synthetic methodology was developed for the preparation of vinyl sulfides through the hydrothiolation of terminal alkynes using the 1-n-butyl-3-methylimidazolium methyl selenite as catalyst. The method is very easy and it was successfully employed in the synthesis of several vinyl sulfides starting from different terminal alkynes and aliphatic or aromatic thiols providing the desired products in high to excellent yields and in some cases, good selectivity was observed.