Preparation of Various Carboxylic Acid Esters from Bulky Alcohols and Carboxylic Acids by a New Type Oxidation-reduction Condensation Using 2, 6-Dimethyl-1, 4- …
A new-type oxidation-reduction condensation by using 2, 6-dimethyl-1, 4-benzoquinone (DMBQ), carboxylic acids and in situ formed alkoxydiphenylphosphines (1) including the bulky alkoxy group-substituted ones proceeded smoothly to afford the corresponding carboxylic acid esters in good to high yields. Alkoxydiphenylphosphines were formed in situ by treating either N, N-dimethylaminodiphenylphosphine (Ph 2 PNMe 2) with primary or ...