Preparation method of 2-(4'-amyl-benzoyl) benzoic acid
A technology of pentylbenzoyl and benzoic acid, which is applied in the field of preparation of 2-benzoic acid, can solve the problems of environmental pollution, large amount of catalyst consumption, difficult post-processing, etc., and achieve the effect of no three wastes and less catalyst consumption
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[0018] Example 1
[0019] The molar ratio of tert-amylbenzene:phthalic anhydride:catalyst is 0.5:1.0:1.0. The catalyst adopts chlorinated-1-methyl-3-butylimidazole-aluminum trichloride ionic liquid.
[0020] In a 250ml three-necked flask equipped with a thermometer and a stirrer, 5.28g of tert-amylbenzene, 5.29g of phthalic anhydride, and 11.01g of catalyst were added, nitrogen was introduced, stirring was turned on, the temperature was slowly raised to 50°C, and the reaction was carried out at this temperature for 5h. After the reaction, the white powdery solid ABB acid was obtained by suction filtration with water, with a yield of 62.3% and a purity of 92.0%.
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[0021] Examples 2-16
[0022] According to the method of Example 1, experiments under different conditions were carried out, and the variation factors and experimental results of each example are shown in Table 1.
[0023] Table 1 Test conditions and results of Examples 1-16
[0024]
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