Method for preparation of 5-fluoro-2-methyl-3-nitrobenzoic acid and its methyl ester

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.

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Bibliographische Detailangaben
Hauptverfasser: BERSIER, MICHAEL, FILLIGER, SARAH, AELLIG, CHRISTOF, KULESZA, ANNA, HANSELMANN, PAUL
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung: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.