A convenient one-pot Negishi coupling of amino-heteroaryl chlorides and alkyl bromides
作者:Iain A.S. Walters
DOI:10.1016/j.tetlet.2005.11.013
日期:2006.1
A simple Ni-catalysed cross-coupling protocol for amino-heteroaryl chlorides with alkylzinc reagents has been developed. The alkylzinc reagents can be commercially available dialkylzincs or alkylzinc halides, or can be conveniently generated in situ from diethylzinc and primary alkyl bromides in the presence of the same inexpensive Ni catalyst used to effect the subsequent coupling reaction.
已经开发了一种简单的Ni催化的氨基杂芳基氯化物与烷基锌试剂的交叉偶联方案。烷基锌试剂可以是可商购的二烷基锌或卤化烷基锌,或者可以在与用于进行后续偶联反应相同的廉价Ni催化剂的存在下方便地由二乙基锌和伯烷基溴化物原位产生。