Studies on pyrrolidinones. On the decarboxylation of pyroglutamic acids and N-acyl prolines in acidic media
作者:Rufine Akué-Gédu、Sahar Al Akoum Ebrik、Anne Witczak-Legrand、Dominique Fasseur、Samira El Ghammarti、Daniel Couturier、Bernard Decroix、Mohamed Othman、Marc Debacker、Benoı̂t Rigo
DOI:10.1016/s0040-4020(02)01183-3
日期:2002.11
During attempted Friedel–Crafts cyclization of some arylmethyl pyroglutamic acids or of N-phenacyl prolines, decomposition of the activated form of the acid have been observed, giving new heterocyclic systems. This general decarboxylation occurred when there are difficulties to realize a Friedel–Crafts cyclization and is explained by geometrical or electronic considerations.