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.
Synthesis of Solid 2-Pyridylzinc Reagents and Their Application in Negishi Reactions
作者:James R. Colombe、Sebastian Bernhardt、Christos Stathakis、Stephen L. Buchwald、Paul Knochel
DOI:10.1021/ol402798z
日期:2013.11.15
In search of alternatives to unstable or unreliable 2-pyridylboron reagents, we have explored two new varieties of solid, moderately air-stable 2-pyridylzinc reagents. Both reagents can be manipulated in air and are competent nucleophiles in Negishi cross-coupling reactions.