单分子亲核取代反应
dān fèn zǐ qīn hé qǔ dài fǎn yìnɡ
- unimolecular nucleophilic substitution
单分子亲核取代反应-
由于单分子亲核取代反应（SN1）经过了碳正离子中间体的历程，所以得到的产物是外消旋的。
In the reaction mechanism of unimolecular nucleophilic substitution ( SN1 ), it can produce carbocations which can easily lead to the racemization of the products .
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氯代烃的氟化是单分子亲核取代反应，其氟化反应的进程决定于中间体R+稳定性。
Fluorination of the chlorohydrocarbon is substitution nucleophilic unimolecular . This fluorinated reaction is decided by the stability of intermediate R + .