Process for forming bis(pentaerythritol phosphate) carbonate.

摘要

Bis(pentaerythritol phosphate) carbonate can be formed by the reaction of pentaerythritol phosphate alcohol and dihydrocarbyl carbonate, such as diphenyl carbonate, preferably in the presence of a transesterification catalyst, such as an imidazole, and in a high boi-ling organic solvent, e.g., a phosphate ester solvent, which allows for removal of by-product.