高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (1): 81.

• 论文 • 上一篇    下一篇

1-苯基-3-甲基-5-吡唑啉酮与二羰基化合物的固相反应研究

杜大明, 王永梅, 孟双明, 梁树森, 孟继本, 周秀中   

  1. 南开大学化学系, 天津 300071
  • 收稿日期:1995-01-22 出版日期:1996-01-24 发布日期:1996-01-24
  • 通讯作者: 孟继本
  • 作者简介:杜大明,男,27岁,博士研究生.
  • 基金资助:

    国家自然科学基金

Studies on Solid State Reaction of 1-Phenyl-3-methyl-5-Pyrazolone with Dicarbonyl Compounds

DU Da-Ming, WANG Yong-Mei, MENG Shuang-Ming, LIANG Shu-Sen, MENG Ji-Ben, ZHOU Xiu-Zhong   

  1. Department of Chemistry, Nankai Uiversity, Tanjin 300071
  • Received:1995-01-22 Online:1996-01-24 Published:1996-01-24

摘要: 报道了苯偶酰及其衍生物、对二甲氨基苯偶姻、邻苯二甲酰亚胺与1-苯基-3-甲基-5-吡唑啉酮的固相热反应研究;这个热反应以较高的选择性生成1:1缩合产物的一种异构体,通过IR、1HNMR、MS和元素分析确定了新产物的结构,并通过X射线衍射分析确定了其中一个产物的构型。

关键词: 固相反应, 1-苯基-3-甲基-5-吡唑啉酮, 二羰基化合物

Abstract: The solid state reactions of benzil,p-dimethylaminobenzil,4,4′-dibromobenzil,p-dimethylaminobenzoin and o-phthalimide with 1-phenyl-3-methyl-5-pyrazolone were re-ported. This thermal reaction was carried out at 120℃ for 0.5hand gave one of the 1:1condensation isomers in a higher selectivity. The structures of seven new products wereidentified by IR,1HNMR, MSand elementary analysis, and the configuration of the prod-uct 1-phenyl-3-methyl-4-benzoylphenylmethylene-5-pyrazolone 1 was determined by X-raydiffraction analysis. In the molecule of compound 1, there is four plans rather than coplanar.Benzoyl group and COgroup of five membered ring are in cis-positions, the interaction ofoxygen atoms leads to noncoplanar.

Key words: Solid state reaction, 1-phenyl-3-methyl-5-pyrazolone, Dicarbonyl compound

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