高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (6): 1056.

• 研究论文 • 上一篇    下一篇

3-芳胺甲烯基-5,6-二氢-二氢吡喃-2,4-二酮类化合物催化氢化反应选择性的理论研究

方亚寅1,2, 沈荣欣2, 孙宏伟2, 袁满雪2, 刘洁2,3, 李正名2,3, 赖城明2,3   

  1. 1. 徐州师范大学化学系, 徐州 221009;
    2. 南开大学化学学院, 天津 300071;
    3. 南开大学元素有机化学国家重点实验室, 天津 300071
  • 收稿日期:2001-02-19 出版日期:2002-06-24 发布日期:2002-06-24
  • 通讯作者: 赖城明(1934年出生),男,教授,博士生导师,主要从事分子模拟及结构化学研究.E-mail:laichm@nankai.edu.cn E-mail:laichm@nankai.edu.cn
  • 基金资助:

    国家自然科学重点基金(批准号:29832050);教育部高等学校骨干教师资助计划项目资助

Theoretical Study on the Reaction Selectivity of the Catalytic Hydrogenation of 3-Analinomethylidene-5,6-2H-dihydropyran-2,4-diones

FANG Ya-Yin1,2, SHEN Rong-Xin2, SUN Hong-Wei2, YUAN Man-Xue2, LIU Jie2,3, LI Zheng-Ming2,3, LAI Cheng-Ming2,3   

  1. 1. Department of Chemistry, Xuzhou Normal University, Xuzhou 221009, China;
    2. Department of Chemistry, Nankai University, Tianjin 300071, China;
    3. State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
  • Received:2001-02-19 Online:2002-06-24 Published:2002-06-24

摘要: 用分子力学方法、AM1半经验方法以及从头算密度泛函B3LYP/6-311G**方法研究了3-芳胺甲烯基-5,6-二氢-二氢吡喃-2,4-二酮类化合物在催化氢化反应中影响反应选择性的因素,结果表明,R基团对自由基中间物稳定性的影响决定了反应选择性.

关键词: 反应选择性, 催化氢化, 3-芳胺甲烯基-5, 6-二氢-二氢吡喃-2, 4-二酮, 密度泛涵, AM1

Abstract: Based on diverse groups(R), which located on the 6-substituted site of the dihydropyrandione ring, the final products obtained from the catalytic hydrogenation of 3-analinomethylidene-5,6-2H-dihydropyran-2,4-diones are very different. The selectivity of the title reaction has been studied by means of B3LYP/6-311G**, AM1 semi-empirical method and molecular mechanics (Tripos force field). The results obtained show that the reaction selectivity is decided by the stability of radical intermediate at the first step and the stability is affected by group R.

Key words: Reaction selectivity, Catalytic hydrogenation, Dihydropyrandione, DFT, AM1

中图分类号: 

TrendMD: