Reactions of Substituted (1,3-Butadiene-1,4-diyl)magnesium, 1,4-Bis(bromomagnesio)butadienes and 1,4-Dilithiobutadienes with Ketones, Aldehydes and PhNO To Yield Cyclopentadiene Derivatives and N-Ph Pyrroles by Cyclodialkenylation
作者:Hongyun Fang、Guotao Li、Guoliang Mao、Zhenfeng Xi
DOI:10.1002/chem.200400025
日期:2004.7.19
4-Dilithiobutadiene derivatives 1, 1,4-bis(bromomagnesio)butadienederivatives 2 and metallacyclic (1,3-butadiene-1,4-diyl)magnesium reagents 3 were prepared and their reactions with ketones, aldehydes, and PhNO were investigated. Multiply substitutedcyclopentadienes and N-Phpyrroles were formed by unprecedented reaction conditions. The carbonyl group of aldehydes and ketones was deoxygenated during