作者:Rita Soler-Yanes、Manuel Guisán-Ceinos、Elena Buñuel、Diego J. Cárdenas
DOI:10.1002/ejoc.201403007
日期:2014.10
Kumada-type cross-coupling of functionalized benzyl and allyl chlorides with alkylmagnesium reagents were discovered. The use of Ni(acac)2–TMEDA (acac = acetylacetonate, TMEDA = N,N,N′,N′-tetramethyl-1,2-ethylenediamine) allows the presence of reactive functional groups on the electrophile. On the other hand, the use of diallyl ether was shown to provide fast coupling at low temperature with a low catalyst
发现了功能化苄基和烯丙基氯与烷基镁试剂的快速 Ni 催化 Kumada 型交叉偶联的条件。Ni(acac)2-TMEDA(acac = 乙酰丙酮化物,TMEDA = N,N,N',N'-四甲基-1,2-乙二胺)的使用允许在亲电子试剂上存在反应性官能团。另一方面,二烯丙基醚的使用显示出在低温下以低催化剂负载提供快速偶联。该反应似乎遵循一个激进的途径。