Cobalt(III)-Catalyzed Allylation of Arene C-H Bonds
作者:Kuppan Ramachandran、Pazhamalai Anbarasan
DOI:10.1002/ejoc.201700528
日期:2017.7.25
Cobalt(III) catalyzed allylation of chelation assisted C-H bonds of arenes have been accomplished employing allylcarbonates. The important features of the present reaction include the use of directing groups such as pyrazoles and pyridines, wide functional group tolerance and the synthesis of various allylated (hetero)arenes in good to excellent yield. Based on the observations, plausible mechanism
<i>ortho</i>
‐Allylation of 2‐Arylindazoles with Vinyl Cyclic Carbonate and Diallyl Carbonate
<i>via</i>
Manganese‐Catalyzed C−H Bond Activation
作者:Asim Kumar Ghosh、Krishna Kanta Das、Alakananda Hajra
DOI:10.1002/adsc.202100627
日期:2021.11.9
A manganese-catalyzed directed C−H allylation of 2-arylindazole has been developed. Both vinyl cyclic carbonate and diallyl carbonate are effectively used for ortho-allylation via decarboxylation. The mechanism was investigated and possibly Mn(I)-catalyzed C−H bond activation is not involved in the rate-determining step.