解决这一问题的一般办法是避免使用烷基卤。
The general answer to this problem is to avoid alkyl halides.
烷基卤脱卤酶的催化脱卤反应具有重要的合成价值和治理环境污染方面的巨大潜力。
Hydrolytic dehalogenation catalyzed by haloalkane dehalogenase is important to chemosynthesis and has quite potential use in environmental pollution.
对烷基化壳聚糖进行X射线光电子能谱分析表明，随着卤代烷试剂反应活性的增高，发生在壳聚糖羟基上的烷基取代反应增多。
X-ray photoelectron spectroscopy (XPS) indicated that the higher reaction activity of alkyl halide, the more alkyl substitution degree on hydroxyl group of chitosan.
介绍吡啶衍生物的分类，并详细总结了烷基吡啶和卤代吡啶的应用及其合成路线。
The classification of pyridine derivatives was introduced, application and synthetic route of alkyl pyridine and halogenated pyridine were also elucidated in detail.
各种烷基或卤代烷基取代基结合在碳-25上。
Various alkyl or haloalkyl substitutions are incorporated at carbon-25.
本发明提供一种使双酚类和芳烷基酚醛树脂的混合物与环氧卤丙烷反 应得到的低粘度且高性能的变性液性环氧树脂。
Disclosed is a modified liquid epoxy resin having low viscosity and high performance, which is obtained by reacting a mixture of a bisphenol and a phenol aralkyl resin with an epihalohydrin.
本发明提供一种使双酚类和芳烷基酚醛树脂的混合物与环氧卤丙烷反 应得到的低粘度且高性能的变性液性环氧树脂。
Disclosed is a modified liquid epoxy resin having low viscosity and high performance, which is obtained by reacting a mixture of a bisphenol and a phenol aralkyl resin with an epihalohydrin.
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