碳阳离子

The first of the reactive intermediates to be considered is known as a "carbocation". 要研究的第一种活性中间体叫做“正碳离子。”

If there are five or more bonds to a single carbon atoms, it will be short of electrons and have a positive charge - this species is called a carbonium ion, a form of carbocation. 阳碳（碳鎓）：如果有五个甚至更多的键连接在一个碳原子上，碳原子由于缺乏电子而带正电，这种物质称为阳碳（或碳鎓），这是碳正离子的一种。

Reaction of ferrocenylphenylcarbinol with ethereal solution of boron trifluoride in dichloride methane formed the relevant ferrocenylphenylmethyl carbocation. 二茂铁基苯基甲醇与三氟化硼-乙醚溶液在二氯甲烷中作用,形成二茂铁苯基甲基碳正离子。

Their result affirm:in all sorts of molecular rearrangement reactions,anyway tend to produce more stable carbocation,or carboanion,or free radical middle substance and their products. 其结果证实:在种种分子重排反应中,总是趋向于生成结构更稳定的碳正离子或碳负离子或自由基中间体及其产物。

Keywords Markovnikov's rule;anti-Markovnikov's rule;electron-effect;reaction mechanism;Carbocation stabilization; 马氏规则;反马氏规则;电子效应;反应历程;碳正离子稳定性;