| 1,3-二苯基-4-乙酰基-5-吡唑酮合成方法的改进 |
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| 引用本文： | 薛卫星,于群,李建宇,肖阳.1,3-二苯基-4-乙酰基-5-吡唑酮合成方法的改进[J].北京工商大学学报(自然科学版),1999,17(1):135. |
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| 作者姓名： | 薛卫星 于群 李建宇 肖阳 |
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| 作者单位： | 北京轻工业学院化学工程系,北京,100037 |
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| 摘 要： | 采用价格仅是乙酰氯１／３的乙酸酐为酰化剂，并选用吡啶为溶剂兼缩合剂，替代二氧六环及氢氧化钙，合成１，３－二苯基－４－乙酰基－５－吡唑酮，在不减少得率的前提下，使制备成本大幅度降低，工艺更为简便
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| 关 键 词： | 乙酸酐 吡啶 1.3－二苯基－5－吡唑酮 1.3－二苯基－4－乙酰基－5－吡唑酮 酰基化 |
| 修稿时间： | 1998－10－29 |
IMPROVEMENT OF SYNTHSIS OF 1,3-DIPHENYL-4-ACETYL-5-PYRAZOLONE |
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| Xue Weixing,Yu Qun,Li Jianyu,Xiao Yang.IMPROVEMENT OF SYNTHSIS OF 1,3-DIPHENYL-4-ACETYL-5-PYRAZOLONE[J].Journal of Beijing Technology and Business University:Natural Science Edition,1999,17(1):135. |
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| Authors: | Xue Weixing Yu Qun Li Jianyu Xiao Yang |
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| Abstract: | Acetic anhydride, whose price is only 1/3 of that of acetyl chloride, is used as the acylation agent. And instead of dioxane and calcium hydroxide, pyridine is chosen to be the condensation agent as well as the solvent. Thus, without reducing the yield, the cost of the preparation for 1,3diphenyl4acetyl5pyrazolone is greatly reduced and the routine is even easier. |
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| Keywords: | acetic anhydride pyridine 1 3diphenyl5pyrazolone 1 3diphenyl4acetyl5pyrazolone acylation |
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