A molecular mechanics approach to mapping the conformational space of diaryl and triarylphosphines
作者:Natalie Fey、James A. S. Howell、Jonathan D. Lovatt、Paul C. Yates、Desmond Cunningham、Patrick McArdle、Hugo E. Gottlieb、Simon J. Coles
DOI:10.1039/b610123b
日期:——
A molecular mechanics force field has been developed which accurately reproduces experimental solid state structures and conformer interconversion barriers for a series of sterically congested diaryl and triaryl phosphines and some of their chalcogenide and Cr(CO)5 derivatives.
ω-Haloalkylphosphine derivatives undergo the intramolecular nucleophilicsubstitution reaction upon treatment with a strong base, yielding either cycloalkylphosphine derivatives or heterocyclic phosphine derivatives. The selectivity of the cyclization of (ω-haloalkyl)alkylarylphosphine derivatives depends strongly on the distance between the electrophilic and nucleophilic carbon atoms and the structure of the phosphorus