Biomimetic Aerobic CH Olefination of Cyclic Enaminones at Room Temperature: Development toward the Synthesis of 1,3,5-Trisubstituted Benzenes
作者:Yi-Yun Yu、Gunda I. Georg
DOI:10.1002/adsc.201300904
日期:2014.4.14
A green and mild protocol for the dehydrogenative olefination of cyclic enaminones was devised via palladium catalysis at room temperature using oxygen as the terminal oxidant. The synthetic utility of the olefinated cyclic enaminones afforded a series of unique 1,3,5‐trisubstituted benzenes via an unanticipated Diels–Alder tandem reaction. The broad substrate scope and good yields achieved with this
使用氧气作为末端氧化剂,在室温下通过钯催化设计了一种绿色温和的环状烯胺酮脱氢烯烃化方案。烯化环烯胺酮的合成效用通过意想不到的 Diels-Alder 串联反应提供了一系列独特的 1,3,5-三取代苯。这种新协议实现了广泛的底物范围和良好的产量,为芳烃功能化提供了另一种途径。