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- W2364389639 abstract "2-(4'-methylbenzoyl) benzoic acid (MBBA) was synthesized by acylation reaction of toluene with phthalic anhydride in the presence of alchlor, the optimum synthesis conditions were: molar ratio of alchlor: toluene : phthalic anhydride = 2: 1 : 6, reaction temperature was 50℃, reaction time was 4h, yield of MBBA was 91.85%. 2-Methylanthraquinone was prepared by dehydration and ring closure reaction of MBBA with concentrated sulfuric acid or oleum, the results showed that the process using concentrated sulfuric acid was better, and the optimum synthesis conditions were: reaction time was 3h, reaction temperature was 130℃, reaction medium was 1,2-dichloroethane, the yield was 88.48%, and melting point was 172℃~ 174℃." @default.
- W2364389639 created "2016-06-24" @default.
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- W2364389639 date "2004-01-01" @default.
- W2364389639 modified "2023-09-28" @default.
- W2364389639 title "Study on the Synthesis Technology of 2-Methylanthraquinone" @default.
- W2364389639 hasPublicationYear "2004" @default.
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