<scp>Cobalt‐Catalyzed</scp>
C—H Allylation of Arenes with Allylic Amines
作者:Rui Yan、Hang Yu、Zhong‐Xia Wang
DOI:10.1002/cjoc.202000680
日期:2021.5
catalyzes pyridyl‐directed C—H allylation of arenes with allylic amines in the presence of AgOAc and CF3COOAg. The reaction features ortho‐position monoallylation of 2‐pyridylarenes, giving the allylated arenes in moderate to high yields. A range of functional groups including OMe, Me, Ph, F, Cl, Br, CF3, C(O)Me, COOEt, and COOH groups are tolerated. Pyrimidyl‐directed C—H allylation of arenes were also performed
在AgOAc和CF 3 COOAg存在下,[Cp * Co(CO)I 2 ]有效催化芳烃与吡啶基定向的CH烯丙基化。该反应具有2-吡啶基芳烃的邻位单烯丙基化的特征,从而使烯丙基化的芳烃具有中等至高收率。允许的官能团范围包括OMe,Me,Ph,F,Cl,Br,CF 3,C(O)Me,COOEt和COOH。在相同条件下还进行了芳基的嘧啶基C H烯丙基化反应。2-苯基嘧啶,2-(4-甲氧基苯基)嘧啶和2-(3-氟苯基)嘧啶的反应导致邻位单烯丙基化和双烯丙基化产物的混合物。其他2-(取代的芳基)嘧啶的反应导致邻位位置单烯丙基化产物。