Severe steric effects at the reactive carbon would impede the substitution.
大的立体效应阻止在碳上的取代。
Severe steric effects at the reactive carbon would impede the substitution .
大的立体效应阻止在碳上的取代。
The steric effects on the reaction of 6, 6-dialkylfulvene with organolithium have been studied.
本文研究了6，6-二烷基富烯与有机锂反应的立体效应。
However, the steric effects related to the substituents of PS and EVA cancels this catalytic behaviour.
然而，有关的PS和EVA取代基的空间位阻效应取消此催化行为。
Some influences of steric effect, reaction temperature and solvent effects were discussed.
并简单讨论了立体效应，反应温度和溶剂效应对此还原反应的影响。
The effects of anionic polymer dispersant with different structures on the electrostatic and steric repulsion forces between particles in the aqueous suspension are mainly studied.
着重研究了不同结构的阴离子聚合物分散剂对悬浮液中颗粒间的静电斥力和空间斥力的影响。
It follow therefore that the steric blocking effects of substituents are reflected in adverse kinetic, rather than thermodynamic factors.
由此可以看出，取代基的主本阻碍反应，是反映在违背动力学因素而不是热力学因素。
It follow therefore that the steric blocking effects of substituents are reflected in adverse kinetic, rather than thermodynamic factors.
由此可以看出，取代基的主本阻碍反应，是反映在违背动力学因素而不是热力学因素。
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