Reductive coupling reactions: a new strategy for C(sp3)–P bond formation
摘要:
The C(sp(3))-P bond forming reaction utilizing N-tosylhydrazones as readily available alkylating reagents was developed, which provides a new opportunity for preparing phosphine oxide derivatives with moderate to good yields. This reductive coupling reaction is proposed to proceed through an insertion of copper carbene into P-H bond of H-phosphorus oxides. The salient features of the reaction are operational simplicity and functional-group tolerance. (C) 2012 Elsevier Ltd. All rights reserved.
A novel copper-catalyzed reductive coupling of N-tosylhydrazones with H-phosphorus oxides
作者:Lei Wu、Xiǎo Zhang、Qing-Qing Chen、An-Kun Zhou
DOI:10.1039/c2ob26414e
日期:——
We report here a novel C(sp3)–P bonds formation via copper-catalyzed reductive coupling of N-tosylhydrazones with H-phosphorus oxides. A variety of aliphatic and aromatic substrates bearing electron-rich and electron-deficient substituents affords phosphine oxide derivatives with moderate to good yields. This work suggests a new transformation of aldehydes/ketones via N-tosylhydrazones to organophosphorus