作者:Steven J. Mansfield、Russell C. Smith、Jonathan R. J. Yong、Olivia L. Garry、Edward A. Anderson
DOI:10.1021/acs.orglett.9b00971
日期:2019.4.19
Ynamides are accessed via copper-catalyzed coupling of Grignard or organozinc nucleophiles with chloroynamides, formed in situ from 1,2-dichloroenamides. The reaction exhibits a broad substrate scope, is readily scaled, and overcomes typical limitations in ynamide synthesis such as the use of ureas, carbamates, and bulky or aromatic amide derivatives. This modular approach contrasts with previous routes
氰化物通过格利雅(Grignard)或有机锌亲核试剂与由1,2-二氯烯酰胺原位形成的氯代乙酰胺的铜催化偶联而获得。该反应显示出广泛的底物范围,易于规模化,并且克服了在酰胺合成中的典型限制,例如使用脲,氨基甲酸酯和大体积或芳香族酰胺衍生物。这种模块化方法与以前的方法相反,它同时安装了乙酰胺的N-和C-取代基作为亲核组分。