METHOD FOR PRODUCING 5-HYDROXY-4-METHOXY-2-NITROBENZOIC ACID COMPOUND

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a 5-hydroxy-4-methoxy-2-nitrobenzoic aid compound. SOLUTION: A 4,5-dimethoxy-2-nitrobenzoic acid compound represented by general formula (1) is reacted with a base and a solvent and an acid are then added. The 5-hydroxy-4-methoxy-2-nitrobenzoic acid compound represented by general formula (2) is obtained from the resultant extract solution. COPYRIGHT: (C)2007,JPO&INPIT