Method for producing redox shuttles

摘要

A single step method for producing a redox shuttle having the formula 2,5-di-tert-butyl-1,4-phenylene tetraethyl bis(phosphate) is provided, the method comprising phosphorylating tert butyl hydroquinone with a phosphate-containing reagent. Also provided is method for producing 2,5-di-tert-butyl-1,4-phenylene tetraethyl bis(phosphate), the method comprising solubilizing tert-butyl hydroquinone and tetrabutylammonium bromide with methyltetrahydrofuran to create a mixture; heating the mixture while adding base to the mixture in an amount to turn the mixture orange; and adding diethyl chlorophosphate to the orange mixture in an amount to phosphorylate the hydroquinone.

主权项

1. A single step method for producing a redox shuttle having the formula 2,5-di-tert-butyl-1,4-phenylene tetraethyl bis(phosphate), the method comprising phosphorylating tert butyl hydroquinone with a phosphate-containing reagent in a dual phase system wherein the dual phase system comprises an aqueous solution of base and a water-immiscible organic solvent in the presence of a phase-transfer catalyst, and wherein the method occurs at between about 20 and 35° C.