Carboxylic esters radical leaving groups: a new and efficient gas-phase synthesis of benzofurans
作者:Michael Black、J. I. G. Cadogan、Gary A. Cartwright、Hamish McNab、Andrew D. MacPherson
DOI:10.1039/c39930000959
日期:——
Flash vacuum pyrolysis (FVP) of o-allyloxycinnamate esters gives benzofurans in high yield, via cyclisation of a phenoxyl radical and subsequent cleavage of the carboxylic ester function; coumarins are obtained by FVP of the corresponding phenols.