Facile Synthesis of Bifunctional Ligands using LiCH<sub>2</sub>PPh<sub>2</sub>═NPh Obtained from [PhNH−PPh<sub>3</sub><sup>+</sup>][Br<sup>−</sup>]
作者:Thi-Phuong-Anh Cao、Elina Payet、Audrey Auffrant、Xavier F. Le Goff、Pascal Le Floch
DOI:10.1021/om100695b
日期:2010.9.13
LiCH2PPh2═NPh derivative 2 was cleanly prepared from the aminophosphonium salt [PhNH−PPh3+][Br−] (1) and MeLi. After formation of the iminophosphorane PPh3═NPh, nucleophilic displacement of one phenyl ring of the P atom by a methyl group occurred. This sequence was demonstrated to highly depend on the experimental conditions and on the substituent pattern at the nitrogen atom. Then, 2 was reacted with various