Studies on Pilocereine and Related Compounds. III. Synthesis of 2, 2', 3-Trimethoxydiphenyl Ether-4', 5- and -4', 6-dicarboxaldehyde.

Abstract

As an important intermediate in the synthesis of Ib, several ways of preparing the dialdehyde (IX) were investigated and a considerable increase in total yield was achieved. Synthesis of XXXI, an intermediate in the synthesis of IIb, was also examined.