Tetra-p-nitrophenyl pyrophosphate, prepared in situ by the reaction of di-p-nitrophenyl hydrogen phosphate with di-ptolyl carbodiimide in anhydrous dioxane, has been found to phosphorylate alcohols at room temperature without basic catalysis and, therefore, constitutes a powerful phosphorylating agent. A number of tertiary di-p-nitrophenyl phosphate esters were thus prepared in excellent yields. The nitrophenyl groups may be ...
[Seiceira, Rafael C.; Machado E Silva, Carlos F. P.; Estevao, Luciana R. M.; Cajaiba Da Silva, Joao F. Organic Process Research and Development, 2003 , vol. 7, # 6 p. 954 - 956]
[Swinson, Joel; Field Lamar; Heimer, Norman E.; Michalska, Danuta; Muccio, Donald D.; et al. Phosphorus and Sulfur and the Related Elements, 1988 , vol. 35, p. 159 - 172]
