Divergent intramolecular reactions between phosphines and alkynes  

作　　者：Yanying Song Lili Wang Zheng Duan Francois Mathey 

机构地区：[1]College of Chemistry and Molecular Engineering,International Phosphorus Laboratory,International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Chinese Chemical Letters》2020年第2期329-332,共4页中国化学快报（英文版）

基　　金：National Natural Science Foundation of China(Nos.21672193,21272218);Henan Province postdoctoral research start-up project;Zhengzhou University of China for financial support of this research。

摘　　要：A divergent intramolecular reaction of phosphine tethered alkyne in protic solvent was developed.This provided a novel and simple access to a large variety of(Z)-alkenylphosphine oxides and phospholane oxides.Our preliminary studies suggested that these divergent reactions are closely related to the reaction condition and molecular structure.A possible mechanism of C-P bond cleavage of a pentacoordinated hydroxyphosphorane intermediate was proposed.A divergent intramolecular reaction of phosphine tethered alkyne in protic solvent was developed.This provided a novel and simple access to a large variety of(Z)-alkenylphosphine oxides and phospholane oxides.Our preliminary studies suggested that these divergent reactions are closely related to the reaction condition and molecular structure.A possible mechanism of C-P bond cleavage of a pentacoordinated hydroxyphosphorane intermediate was proposed.

关 键 词：C-P bond CLEAVAGE PHOSPHINE ALKYNE Alkenylphosphine Phospholane 

分 类 号：O621.251[理学—有机化学] O641.4[理学—化学]