冯正洋, 冯麟. 益解分中同体—3,4-二甲基苯甲酸的合成J. 药学学报, 1956, 4(4): 269-272.
引用本文: 冯正洋, 冯麟. 益解分中同体—3,4-二甲基苯甲酸的合成J. 药学学报, 1956, 4(4): 269-272.
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FENG CHENG-YANG, . SYNTHESIS OF 3, 4-DIMETHYL BENZOIC ACID——AN INTERMEDIATE FOR IRGAFEN PREPARATIONJ. Acta Pharmaceutica Sinica, 1956, 4(4): 269-272.
Citation: FENG CHENG-YANG, . SYNTHESIS OF 3, 4-DIMETHYL BENZOIC ACID——AN INTERMEDIATE FOR IRGAFEN PREPARATIONJ. Acta Pharmaceutica Sinica, 1956, 4(4): 269-272.
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益解分中同体—3,4-二甲基苯甲酸的合成

SYNTHESIS OF 3, 4-DIMETHYL BENZOIC ACID——AN INTERMEDIATE FOR IRGAFEN PREPARATION

    摘要
  • Abstract: When 2, 4-Dimethyl acetophenone (1 part) was mixed with aluminium chloride (2 parts) and heated at 135℃ for 9-10 hours, migration occurred with the formation of 3, 4- isomer. The latter was oxidized by sodium hypochlorite solution at 55℃ to 3, 4- dimethylbenzoic acid, melting point 165-166℃.

     

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