A novel base-induced ring expansion of quaternized heterocycles
作者:Hans-Jürgen Federsel、Jan Bergman
DOI:10.1016/s0040-4039(00)93167-8
日期:1980.1
The synthesis of some 6-, 7- and 8-membered heterocycles through a base induced ring expansion of quaternized thiazolium, oxazolium and selenazolium salts is described.