acetic anhydride

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，以甲苯和酐为原料，在催化剂三氯化存在下合成对甲基苯酮，并确定甲苯，酐和三氯化的最佳摩尔比为4: 1: 2，收率为86.2%。

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氨基蒽醌和酐为原料，作溶剂，合成了1酰氨基蒽醌。

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、酐生产中的有机废水采用厌氧好氧生化法的试验。

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。