A Mild Negishi Cross-Coupling of 2-Heterocyclic Organozinc Reagents and Aryl Chlorides
作者:Michael R. Luzung、Jigar S. Patel、Jingjun Yin
DOI:10.1021/jo1018798
日期:2010.12.3
A mild Negishi cross-coupling of 2-heterocyclic organozincreagents and aryl chlorides is described. The use of Pd2(dba)3 and X-Phos as a ligand provides high yields for many examples. An efficient method to generate the organozincreagents at roomtemperature is also demonstrated.
Nickel-Catalyzed Reductive 2-Pyridination of Aryl Iodides with Difluoromethyl 2-Pyridyl Sulfone
作者:Wenjun Miao、Chuanfa Ni、Pan Xiao、Rulong Jia、Wei Zhang、Jinbo Hu
DOI:10.1021/acs.orglett.0c03939
日期:2021.2.5
A novel nickel-catalyzed reductive cross-coupling between aryl iodides and difluoromethyl 2-pyridyl sulfone (2-PySO2CF2H) enables C(sp2)–C(sp2) bondformationthrough selective C(sp2)–S bond cleavage, which demonstrates the new reactivity of 2-PySO2CF2H reagent. This method employs readily available nickel catalyst and sulfones as cross-electrophile coupling partners, providing facile access to biaryls