Catalytic Reductive Dehydration of Tertiary Amides to Enamines under Hydrosilylation Conditions
摘要:
Tertiary amides are efficiently reduced to their corresponding enamines under hydrosilylation conditions, using a transition-metal-free catalytic protocol based on t-BuOK (5 mol %) and (MeO)(3)SiH or (EtO)(3)SiH as the reducing agent. The enamines were formed with high selectivity in good-to-excellent yields.
The chemistry of N-substituted benzotriazoles: a novel route to dienamines
作者:Alan R. Katritzky、Qiu-He Long、Ping Lue
DOI:10.1016/s0040-4039(00)79784-x
日期:1991.7
Readily prepared 1,3-bisbenzotriazolyl tertiary amines were converted into dienamines the elimination of benzotriazole moieties with sodium hydride in tetrahydrofuran. Yields compare favourably with other methods.