Spirophosphoranes a liaison P-OH. Synthese, tautomerie
作者:A. Munoz、B. Garrigues、M. Koenig
DOI:10.1016/0040-4020(80)80225-0
日期:1980.1
Spirophosphoranes with a P-OH bond have been prepared as free acid (compound 5c), triethylammonium salts (compounds 2c–6c), or adducts with DMF (compounds 5c and 6c). The ionic feature of triethylammonium salts of compounds 1c–6c, shows that these Spirophosphoranes are relatively strong Brønsted's acids. Tautomeric equilibrium phosphoric ester—phosphorane with a P-OH bond [Scheme 9), shown in many