tertiary carbon

For initiator B , when temperature is less than 180 ℃, MAH first reacts with secondary carbon of EB-block , secondly reacts with tertiary carbon ; when temperature is higher than 180 ℃, the reaction rate of MAH reacted primary , secondary , tertiary carbon are similar .

对引发剂B，在温度低于180℃之前，仲碳原子最易发生接枝反应，其次是叔碳原子，当温度高于180℃后，伯碳原子、仲碳原子和叔碳原子的反应速率差不多。

Some total syntheses of natural products via intramolecular Heck reaction were reviewed focused on how to construct tertiary carbon and quartus carbon chiral centers .

主要介绍了近年来分子内Heck反应在天然产物合成中的应用，重点介绍叔碳和季碳手性中心的构筑。

In the etherification process of FCC gasoline , reaction temperature has considerable effect on the etherification conversion of tertiary carbon olefins , polymerization conversion of diene and sulfonic shedding rate .

在催化裂化轻汽油醚化过程中，反应温度对叔碳烯烃醚化转化率、二烯烃聚合转化率以及阳离子交换树脂催化剂的脱磺速率有较大的影响。

Cumene adsorbed on the basic sites of CaO through H atom on tertiary carbon of the isopropyl group , which caused the weakening of the C-H bond on tertiary carbon of isopropyl group , and was favorable to peroxidation of cumene .

异丙苯通过异丙基叔碳原子上的氢原子与CaO催化剂表面碱中心发生化学吸附，弱化了异丙基叔碳原子上的C&H键，从而有利于催化异丙苯氧化合成CHP的反应。