SANCHEZ M.; BRAZIER J.-F.; HOUALLA D.; WOLF R., NOUV. J. CHIM , 1979, 3, NO 12, 775-783
作者:SANCHEZ M.、 BRAZIER J.-F.、 HOUALLA D.、 WOLF R.
DOI:——
日期:——
Optically active five-co-ordinated phosphoranes. Apicophilicity of the amino-group compared with hydrogen: a comparative kinetic study. Influence of the activation entropy
作者:Alain Klaebe、Michel Sanchez、Genevi�ve Caruana、Robert Wolf
DOI:10.1039/p29800000976
日期:——
monodentate phosphorus substituent: H for (1) and PhNH for (2). A kinetic study of the isomerization (epimerization) of each of these pairs has been carried out by polarimetry. The difference in apicophilicity of the exocyclic ligand fails to explain the small difference between the barriers observed for (1) and (2). An accurate determination of the activation parameters shows that in these cases the