Chemistry Letters, Vol.31, No.11, 1126-1127, 2002
Benzylation of carboxylic acids by oxidation-reduction condensation using quinones and benzyloxydiphenylphosphine
Various carboxylic benzyl esters were obtained in high yields by way of oxidation-reduction condensation in which benzyloxy-diphenylphosphine (BDPP), having been prepared easily from chlorodiphenylphosphine and benzyl alcohol, was treated with various carboxylic acids in the presence of 2,6-dimethyl-1,4-benzoquinone(DMBQ) under mild conditions.