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1)  halogen substiuted
卤素取代
2)  β-halo substitution
β-卤素取代
1.
The result also indicated that β-halo substitution would enhance the interaction between calix[4]pyrrole and halide anion, and the interaction was the strong- est for β-chloro substitution.
结果表明,杯[4]吡咯β位被卤素拉电子基团取代后,主体分子的构象特征受吡咯单元的偶极影响;β-卤素取代导致了杯[4]吡咯对卤素离子的结合作用增强,且当β位为氯取代时,杯[4]吡咯对卤素离子的结合能力最强。
3)  halogen substituted
卤素取代的
4)  halogen substituent
卤素取代基
1.
The two main methods for the synthesis of tetrathiafulvalene (TTF) derivatives containing halogen substituent, namely the direct halogenation of TTF and its derivatives and the trialkyl phosphite-mediated coupling of halogenated 1,3-dithiole-2-thione (or 2-one) compounds are outlined briefly.
简要概括了含卤素取代基四硫富瓦烯(TTF)衍生物的主要合成方法,即TTF及其衍生物的直接卤化法以及卤代1,3-二硫杂环戊烯-2-(硫)酮在亚磷酸三烷基酯参与下的偶合反应。
5)  halogen nucleophilic substitution
卤素亲核取代
6)  halogenating addition reaction
卤化取代
1.
In this paper, research progress in the studying of high efficiency halogenation agent in recent years was reviewed and the application of a series of high efficiency halogenating reagents in halogenating substitution reaction and halogenating addition reaction were introduced.
本文对近年来在高效卤化试剂研究方面取得的进展进行了综述,介绍了系列高效卤化剂在卤化取代反应、卤化加成反应等方面的应用。
补充资料:含卤素阻燃剂
分子式:
CAS号:

性质:含卤素的有机或无机阻燃剂。聚合物的燃烧是一个热氧化反应过程,而含卤素化合物在高温下分解产生卤原子,它将与聚合物中的氢原子反应生成卤化氢。卤化氢可与燃烧反应所生成的自由基结合,从而中止氧化反应起到阻燃作用。卤素中含溴的阻燃剂效果最好。

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