A Concerted Transfer Hydrogenolysis: 1,3,2-Diazaphospholene-Catalyzed Hydrogenation of NN Bond with Ammonia-Borane
作者:Che Chang Chong、Hajime Hirao、Rei Kinjo
DOI:10.1002/anie.201400099
日期:2014.3.24
1,3,2‐diazaphospholenescatalyzemetal‐free transfer hydrogenation of a NN double bond using ammonia–borane under mild reaction conditions, thus allowing access to various hydrazine derivatives. Kinetic and computational studies revealed that the rate‐determining step involves simultaneous breakage of the BH and NH bonds of ammonia–borane. The reaction is therefore viewed as a concerted type of