Synthesis of Allenes by Hydroalkylation of 1,3-Enynes with Ketones Enabled by Cooperative Catalysis
作者:Maxwell Eaton、Yuping Dai、Ziyong Wang、Bo Li、Walid Lamine、Karinne Miqueu、Shih-Yuan Liu
DOI:10.1021/jacs.3c08151
日期:2023.10.4
A method for the synthesis of allenes by the addition of ketones to 1,3-enynes by cooperative Pd(0)Senphos/B(C6F5)3/NR3 catalysis is described. A wide range of aryl- and aliphaticketones undergo addition to various 1,3-enynes in high yields at room temperature. Mechanistic investigations revealed a rate-determining outer-sphere proton transfer mechanism, which was corroborated by DFT calculations