1. By the improved method, proglumide was synthesized in acetic anhydride with toluene as the dehydrating agent.
   本文报道合成抗溃疡药丙谷胺的改进工艺。
2. The test for treatment of waste water from acetic acid and acetic anhydride production by using anaerobic digestion-aerophile biochemical method is described.
   介绍对醋酸、醋酐生产中的有机废水采用厌氧好氧生化处理方法的试验。
3. In this paper,1 acetylaminoanthraquinone was synthesized by using 1 aminoanthraquinone and acetic anhydride as starting materials and by using acetic acid as solvent.
   本文以1氨基蒽醌和乙酐为原料，乙酸作溶剂，合成了1乙酰氨基蒽醌。
4. Firstly, p-methylacetophenone was obtained in the presence of alchlor as the catalyst, and the optimum condition was 4:1:2 in molar ratio for toluene, acetic anhydride and alchlor with yield of 86.2%.
   首先，以甲苯和乙酸酐为原料，在催化剂三氯化铝存在下合成对甲基苯乙酮，并确定甲苯，乙酸酐和三氯化铝的最佳摩尔比为4: 1: 2，收率为86.2%。

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