OTTO DAHL Department of General and Organic Chemistry, The HC 0rsted Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark ... Abstract The mechanism of substitution reactions at tricova- lent phosphorus, mainly the system >P-NR2 + ROH, is discus- sed on the basis of stereochemistry, catalysis, kinetics and substituent effects. ... INTRODUCTION Nucleophilic substitution reactions at tricovalent phosphorus (eq. 1) occur readily and are ...
