Title:
PREPARATION OF ALKYL 3-HYDROXY,2,4,5-TRIFLUOROBENZOATE AND/OR ALKYL 3-ALKOXY-2,4,5-TRIFLUOROBENZOATE
Document Type and Number:
Japanese Patent JPH07165670
Kind Code:
A
Abstract:
PURPOSE: To obtain an alkyl 3-hydroxy-2,4,5-trifluorobenzoate and/or an alkyl 3-alkoxy-2,4,5-trifluorobenzoate, useful as precursor compds. of bactericides, at high purity, in high yield, without causing environmental pollution and in a safe manner by reacting a specified benzoic acid deriv. with a dialkyl carbonate at a specified temp.
CONSTITUTION: A 3-hydroxy-2,4,5-trifluorobenzoate is reacted with a dialkyl carbonate at a temp. of 80 to 200°C to obtain the contemplated compd. Pref., in obtaining the contemplated compd., a mixture of a metal iodide, such as potassium iodide, with an alkylation catalyst, such as 4-dimethylaminopyridine, is used as a catalyst.
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Inventors:
RARUFU PUFUIRUMAN
TEODOORU PAPENFUUSU
TEODOORU PAPENFUUSU
Application Number:
JP22184194A
Publication Date:
June 27, 1995
Filing Date:
September 16, 1994
Export Citation:
Assignee:
HOECHST AG
International Classes:
B01J31/26; C07B61/00; C07C67/10; C07C69/84; C07C69/88; C07C69/92; (IPC1-7): C07C69/84; B01J31/26; C07C67/10; C07C69/92
Attorney, Agent or Firm:
Mitsufumi Ezaki (3 others)
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