化学学报 ›› 1992, Vol. 50 ›› Issue (11): 1046-1050. 上一篇    下一篇

研究论文

甲基环丙烷卡宾重排反应机理的探讨

王镇;王秉泽;邓从豪   

  1. 山东工业大学化学教研室;山东大学理论化学研究室
  • 发布日期:1992-11-15

Study on the rearrangement mechanism of methylcyclopropylidene

WANG ZHEN;WANG BINGZE;DENG CONGHAO   

  • Published:1992-11-15

本文用HF/STO-3G解析梯度方法计算了甲基环丙烷卡宾重排反应的8个构型,它们代表4个反应类型.计算结果表明,甲基的H原子对卡宾碳的1,3迁移遵从端端告拢机理.环丙烷上的H原子1,2迁移活性遵从夹有

关键词: 反应机理, 碳烯, 重排反应, 从头计算法, 甲基环丙烷

HF/STO-3G analytic gradient method is used to calculate 8 structures of methylcyclopropylidene rearrangement reactions. These structures belong to 4 reaction types. The results show that hydrogen atom 1,3-shift of Me for carbene follow the end-on mechanism. The reaction activity of H atom 1, 2-shift on cyclopropyl ring obeys the rule; the smaller the angle between carbene carbon and CH, the larger the H shift activity.

Key words: REACTION MECHANISM, CARBENE, REARRANGEMENT REACTION, AB INITIO CALCULATION

中图分类号: