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ChemicalBook CAS DataBase List 4-(Trifluoromethyl)benzoic acid
455-24-3

4-(Trifluoromethyl)benzoic acid synthesis

11synthesis methods
-

Yield:455-24-3 99%

Reaction Conditions:

with oxygen;copper(II) acetate monohydrate;cobalt(II) diacetate tetrahydrate in water at 70; under 760.051 Torr; for 1 h;

Steps:

15 Example 15 Preparation of p-trifluoromethylbenzoic acid by oxidation of p-trifluoromethylbenzaldehyde

Under atmospheric pressure oxygen, water (2mL), p-trifluorobenzaldehyde (1mmol), Cu(OAc)2· H2O (0.003mmol, 0.3% mole fraction) and Co(OAc)2· 4H2O (0.003 mmol, 0.3% mole fraction) was added to a 15 mL glass reaction tube, and an oxygen balloon was connected.The reaction tube was placed in an oil bath heated to 70°C in advance and stirred for 1 hour. After the reaction was completed, the temperature was lowered, the crude product solid was separated by centrifugation, and then ultrasonically washed with 3 mL of water, centrifuged and dried to constant weight to obtain the target product. The separation yield was 99 %.

References:

CN111116348,2020,A Location in patent:Paragraph 0040-0041

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