Synthesis of salts of a pentaoxyspirophosphorane having a P–OH bond
Abstract
The pentaoxyspirophosphorane (1) having a P–OH bond was prepared from the reaction of POCl3 with benzilic acid and isolated as its triethylammonium salt: this compound and the corresponding NN-dimethylformamidinium salt have also been synthesised from the spriophosphorane (2), having a P–H bond, by oxidation with Me2SO.