高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (12): 1263.

• 论文 • 上一篇    下一篇

卡宾与2-丁烯环加成反应机理的MNDO法研究

阎德意, 苏双全, 汤定华   

  1. 天津师范大学化学系
  • 收稿日期:1987-06-05 出版日期:1988-12-24 发布日期:1988-12-24
  • 通讯作者: 汤定华

An MNDO Study of the Gyclpaddition Reaction of Garbene with Butene

Yan Deyi, Su Shuangquan, Tang Dinghua   

  1. Dept. of Chemistry, Tianjin Normal University, Tianjin
  • Received:1987-06-05 Online:1988-12-24 Published:1988-12-24

摘要: 用MNDO法研究单线态和三线态卡宾与乙烯,顺式及反式-2-丁烯的反应途径。合理地解释了顺式和反式-2-丁烯与三线态卡宾都形成顺式和反式-2-二甲基环丙烷。用MNDOCI计算了有关反应的反应活化能。

关键词: 卡宾, 环加成, MNDO-CI

Abstract: The reaction pathways of singlet and triplet carbens with ethylene, cis-2-butene and trans-2-butene have been studied by means of MNDO. metho. The reasonable explanation of either cis- or trans-2-butene with triplet carbeneto form the mixtrue of cis- and trans- 1,2-dimethyl cyclopropane has been given, The. reaction activation barriers of singlet carbene with cis- and trans-2-butene, using MNDO-CIcalculation, are 53.05. and. 57.23kJ/mol, respectively. The reaction mechanism is discussed briefly in the light of frontier orbital theory.

Key words: Carbene, Cycloaddition, MNDO-CI

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