[EN] METHOD FOR PREPARATION OF 5-FLUORO-2-METHYL-3-NITROBENZOIC ACID AND ITS METHYL ESTER<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ACIDE 5-FLUORO-2-MÉTHYL-3-NITROBENZOÏQUE ET DE SON ESTER MÉTHYLIQUE
申请人:LONZA AG
公开号:WO2019016110A1
公开(公告)日:2019-01-24
The invention discloses a method for preparation of 5-fluoro-2-methyl-3-nitrobenzoic acid and its methyl ester by conversion of 5-fluoro-2-methylbenzoic acid with fuming nitric acid and oleum and subsequent conversion with methanol.
该发明公开了一种通过将5-氟-2-甲基苯甲酸与浓硝酸和熏苏石脑油反应,然后与甲醇反应制备5-氟-2-甲基-3-硝基苯甲酸及其甲酯的方法。