Synthesis of 5-substituted alpha,beta-butenolides by iron-promoted intramolecular cyclocarbonylation: Addition of organometallic reagents to iron-substituted enals
C. Moller et al., Synthesis of 5-substituted alpha,beta-butenolides by iron-promoted intramolecular cyclocarbonylation: Addition of organometallic reagents to iron-substituted enals, SYNLETT, (2), 2000, pp. 182-184
Reactions of organolithium and Grignard reagents with cyclic [eta(5)-C5H5(C
O)(2)Fe]-substituted enals provide alpha,beta-butenolides by a reaction cas
cade involving an intramolecular cyclocarbonylation step.