REACTION OF CARBANION OF FISCHER-TYPE CARBENE COMPLEXES WITH PYRYLIUM-SALTS - ONE-POT SUBSTITUTED BENZOPHENONES FORMATION BY SUBSEQUENT CYCLIZATION AND DOUBLE HYDROGEN BETA-ELIMINATION
P. Lepoul et al., REACTION OF CARBANION OF FISCHER-TYPE CARBENE COMPLEXES WITH PYRYLIUM-SALTS - ONE-POT SUBSTITUTED BENZOPHENONES FORMATION BY SUBSEQUENT CYCLIZATION AND DOUBLE HYDROGEN BETA-ELIMINATION, Journal of organometallic chemistry, 546, 1997, pp. 447-450
Carbanions of Fischer-type carbene complex react with pyrylium salts.
The unstable dienone formed gives substituted benzophenones after ring
-closure and aromatization by double hydrogen beta-elimination. (C) 19
97 Elsevier Science S.A.