| 1,3—偶极环加成及其反应机理探讨 |
| |
| 引用本文： | 沈建新.1,3—偶极环加成及其反应机理探讨[J].赣南师范学院学报,1989(Z2). |
| |
| 作者姓名： | 沈建新 |
| |
| 作者单位： | 赣南师范学院化学系 |
| |
| 摘 要： | 作为一个反应类型,本文介绍了1,3—偶极环加成,述及了有争议的几种历程及其论据:R.Hiusgen的协同机理,R.A.Firestone的带有双游基中间体的两步机理等等。其中,前者较为人们广泛地接受。协同反应的核心问题是同时性,因为绝对的“同时”是不存在的,所以“协同”反应有着潜在的不协同性。
|
| 关 键 词： | 偶极环加成 反应机理 轨道对称 立体专一性 双游基中间体历程 |
A probe into the 1. 3-Dipolar Cycloaddtion and Its Reaction Mechanism |
| |
| Shen Jianxin.A probe into the 1. 3-Dipolar Cycloaddtion and Its Reaction Mechanism[J].Journal of Gannan Teachers' College(Social Science(2)),1989(Z2). |
| |
| Authors: | Shen Jianxin |
| |
| Institution: | Department of Chemistry |
| |
| Abstract: | This paper introduce 1, 3-dipolar cycloaddition as a type of reaction, and also mentioned several disputed mechanisms and arguments: R.Hiusggen's concerted mechanisms R.A.Firestone's a two-step mechanism with diradical intermediate and so on,in which the fomer has been widely accepted.The core of the concerted mechanism reaction is synchronization. Because absolute synchronism is nonexistent, therefore the concerted reaction will involve some latant unconcertdness. |
| |
| Keywords: | 1 3-dipolar cycloaddition concerted mechanism orbital symmetry stereospecificity two step mechanism with diradical intermediate |
| 本文献已被 CNKI 等数据库收录！ |
|
