Catalytic Amination of 2-Substituted Pyridines with Hydrazine Derivatives
作者:Jeffrey B. Arterburn、Kalla Venkateswara Rao、Ranjit Ramdas、Benjamin R. Dible
DOI:10.1021/ol015731y
日期:2001.5.1
were prepared in a one-step palladium-catalyzed amination reaction using chelating phosphine ligands. 2-Pyridyl chlorides, bromides, and triflates were effective electrophiles in these reactions. Di-tert-butyl hydrazodiformate was an excellent hydrazine substrate, and the resulting products were deprotected under mild conditions. Catalytic amination provides a direct route to protected bifunctional