Controlled β-protonation and [4+2] cycloaddition of enals and chalconesvia N-heterocyclic carbene/acid catalysis: toward substrate independent reaction control
作者:Zhenqian Fu、Hui Sun、Shaojin Chen、Bhoopendra Tiwari、Guohui Li、Yonggui Robin Chi
DOI:10.1039/c2cc36564b
日期:——
A substrate-independent selective generation of enolates over homoenolate equivalents in NHC-catalyzed reactions of enals and chalcones is disclosed. Acid co-catalysts play vital roles in control of the reaction pathways, allowing for individual access to diverse products from identical substrates.
公开了在NHC催化的Enals和Chalcones反应中,与底物无关的烯醇化物的选择性生成。酸助催化剂在控制反应路径中起着至关重要的作用,允许从相同的底物上单独获得各种产物。