| 释义 |
Wit·tig 英ˈvɪtɪ'美ˈvɪtɪ'AHDvĭtʹĭ‘ Economist⁵³⁵⁸¹⁺¹
基本例句
reaction 化维蒂希反应一种有机合成技术
A group of multi substituted phenols were prepared via intramolecular wittig reaction of a kind of long chain phosphonic slides.
一类含六个碳的长链叶立德通过分子内维蒂希反应可生成含氟多取代苯酚。 iciba
The calculated results show that the aza Wittig reaction is a two step reaction, having one four membered ring intermediate on its reaction surface.
计算结果表明该反应是一个二步反应，在反应途径上存在一个四元环中间体。 cnki
Also, the high stereoselectivity of the Wittig olefination has been well rationalized.
同时，对该烯化反应所表现出的高度立体选择性作了合理解释。 fabiao |