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Preparation of 3,4,5,3′‐Tetramethoxy‐4′,5′‐Methylenedioxybenzophenone and Bis‐(3‐Methoxy‐4,5‐Methylenedioxy)‐Benzophenone
Author(s) -
Zee ShengHsu,
Chou ShanYen
Publication year - 1990
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199000071
Subject(s) - chemistry , benzophenone , methylenedioxy , decarboxylation , gallic acid , oxidative decarboxylation , stereochemistry , organic chemistry , alkyl , enzyme , halogen , antioxidant , catalysis
The preparation of 3,4,5,3′‐tetramethoxy‐4′,5′‐methylenedioxybenzophenone (I) and bis‐(3‐methoxy‐4,5‐methylenedioxy)‐benzophenone(II) were reported. The synthesis of these compounds were accomplished using two separate synthetic routes starting from gallic add and its derivatives to the corresponding benzils. Both compound I and II were obtained by benzilic acid rearrangement of the benzils and followed by an oxidative decarboxylation.