Arbuzov reactions employing an aliphatic solvent

摘要

An improved process for phosphite rearrangement wherein the phosphite is rearranged to the phosphonate. The improvement comprises conducting the phosphite rearrangement reaction in an aliphatic solvent which is miscible with the reactants at reaction temperatures, and immiscible with the product at lower temperatures. Increased yields of the phosphonate product are obtained without the need for additional distillation for solvent separation.