Synthesis of Monomethyl Diphenates. (2)
Keywords:
monomethyl diphenate,
diphenic anhydride,
methanolysis,
diphenic acid,
biphenylcarboxylate
1977 Volume 97 Issue 8 Pages 901-905
Details
1977 Volume 97 Issue 8 Pages 901-905
Methanolysis of diphenic anhydrides (Va-c) obtained from diphenic acids (VIa-c) gave monomethyl diphenates (VIIa-c and VIIIa-c). The structures of these diphenates were confirmed by direct comparison of these compounds with authentic samples of VIIa-c and VIIIa-c prepared by oxidation of methyl 2'-formyl-2-biphenylcarboxylate derivatives (IXa-c and Xa-c) with potassium permanganate. The two directions of methanolysis of V to form VII and VIII are discussed.
