Pure Appl. Chem., 2005, Vol. 77, No. 12, pp. 2011-2020
http://dx.doi.org/10.1351/pac200577122011
Recent developments in the chemistry of low-coordinated organophosphorus compounds
Abstract:
Sterically protected organophosphorus compounds are described, involving diphosphenes, phosphaethenes, diphosphinidenecyclobutenes (DPCBs), phosphaalkynes, phosphaquinones, diphosphathienoquinones, and so on of coordination number 2 or 1. Application of the DPCBs as well as phosphinophosphaethenes as a ligand of transition-metal catalysts for several organic coupling reactions has been investigated.