卤代烷

这个反应称为Hofman消除反应，它很像卤代烷的脱卤化氢反应。

This reaction , called the Hofman elimination , is quite analogous to the dehydrohalogenation of an alkyl halide .

硫酸二甲酯是一种重要的化工原料，在有机合成中用于代替卤代烷作为甲基化剂。

Sulfuric acid dimethyl ester , one of the important chemical raw materials acts as the methylating agent in the organic synthesis for the purpose of replacing alkyl halide .

这些衍生物可以容易地在碱性条件下通过2-巯基吡啶和卤代烷的烷基化而得到。

These derivatives are readily obtained by alkylation of2-mercaptopyridine and alkyl halides under alkaline conditions .

卤代烷亲核取代反应的一种新机理&S（RN）1

A New Mechanism of Nucleophilic Substitution Reactions for Alkyl Halides & S_ ( RN ) 1

新型卤代烷替代品SDE灭火剂及其灭火系统设计应用

Design and Application for A New-type Halon Substitute of SDE Extinguishing Agent and System

以对苯二酚为原料，经MANNICH反应制得含杂环中间体1、2，进一步与长链卤代烷反应制得3种含杂环的多链表面活性剂34、、5。

Intermediates 1 and 2 containing heterocycles were synthesized from hydroquinone via Mannich reaction . Surfactants 3,4,5 with two more chains were prepared from 1 or 2 with long chain alkyl halide .

本文报导在KF·2H2O促进下，S-（-）-或R-（+）-1,1′-联-2-萘酚（1）和卤代烷进行的O-烷基化反应，得到构型保持的产物。

The O-alkylation of S ( - ) - 1,1 ' - bis-2-naphthol [ S ( - ) - 1 ] , or R ( + ) - 1 with various alkyl halides in the presence of potassium fluoride hydrate was studied .

对影响S-烷基化反应的条件进行了优化，优化条件如下：2-硫代-4-咪唑啉二酮5mmol、卤代烷6mmol和无水碳酸钾8mmol；

The optimum conditions were : 2-thio-4-imidazolidinone , 5 mmol ; alkyl halides , 6 mmol ; potassium carbonate , 8 mmol ;

卤代烷1211喷射历时求解方法探讨

Discussion on the calculation of spouting time of haloalkane 1211

卤代烷1211和1301灭火剂替代物的灭火机理、使用情况及评价标准

The Fire-extinguishing Mechanism , Application and Evaluation Criterion of Halon Extinguishant Substituent

卤代烷灭火剂的替代研究情况介绍

On the research of fire extinguishing chemicals & substitutes of halogenated alkanes

对现行消防规范中卤代烷灭火产品替代的理解

Understanding of Alkyl Halide Extinguishing Product Substitution in the Current Fire_fighting code

卤代烷第一电离能的自相关拓扑研究

Autocorrelation Topological Research of the First Ionization Potentials for Haloalkanes

胺能参加与卤代烷的亲核取代反应。

Amines can engage in nucleophile substitution reaction with alky .

顺丁橡胶膜的卤代烷等离子体表面改性及其气体透过性能

Surface modification of cis-1,4-polybutadiene with halocarbon plasmas and gas permeability of the membrane

分子树拓扑指数与卤代烷热力学性质的相关关系

Correlative between Autocorrelation Topological Index of Molecular Tree and Thermodynamic Properties for Alkyl Halides

由二卤代烷与碱金属或碱土金属的多硫化物缩聚而成。

By two alkyl halide with alkali metal or alkaline earth metal polysulfides from condensation .

多卤代烷反应的研究（Ⅱ）1,2,3三氯丙烷的取代消去反应研究

STUDIES ON REACTIONS OF ALKYL POLYHALIDES (ⅱ) & Study on The Substitution-Elimination Reaction of 1,2,3-Trichloropropane

GB/T14088-1993船用卤代烷灭火系统技术条件

Marine halon fire extinguishing system technical specifications

卤代烷、醇、硫醇和胺气相色谱相对保留时间定量关系的研究

Study on QSPR of GC relative retention time for haloalkanes , alcohols , sulfur alcohols and amines

卤代烷气体灭火系统

Halon gas extinguishing system

而当卤代烷的碳链增长时，其与R-2-氨基丁醇反应的活性降低。

The reaction activity of alkyl halides decreases when the number of carbons in the alkyl chain rises .

随着人们环保意识日益增强，卤代烷被整体淘汰是不可避免的趋势。

With the increasing requirement for environmental safety , it is inevitable trend that Halon will be banned completely .

但是，1974年科学家发现，卤代烷化合物是造成臭氧空洞形成的重要原因。

But in 1974 scientists found that the halogen-alkyl compound is the main factor of those can lead to the Ozone cavity .

在某些《有机化学》教科书中，卤代烷与氨反应制备胺的反应方程式有误。

Of some textbooks of organic chemistry , There is a error in equation for preparing amines from alkyl halides and ammonia .

有机磷化合物的研究Ⅹ.五价膦（磷）酸酯与卤代烷在卤化钠存在下的酯烷基交换反应

Studies on organophosphorus compounds ⅹ . the ester alkyl exchange reaction of quinque-valent phosphorus esters with alkyl halide in the presence of sodium halide

论述了海军舰船防火灭火系统现状与发展，重点进行了卤代烷灭火系统的替代可行性分析。

This peper discusses the hot-points and tendancy of the fire-fighting system in warship , paying more attention to research the displacement for halon .

以2－芳基－5－巯基－1，3，4－三唑为原料，在稀碱存在下与二卤代烷反应合成了10个新的标题化合物。

By the reaction of 2 aryl 5 mercapto 1,3,4 triazoles with alkyl dihalide in presence of dilute base , ten new title compounds had been prepared .

本文研究利用相转移催化剂催化肉桂酸盐与卤代烷反应合成肉桂酸酯食用香料的简便方法。

This paper studies a simple way of synthesizing food flavoring ofcinnamic acid esters by using phase transfer eatylist to catalyze sodium cinnamate and alkyl halided after reaction .

科学探测与试验发现，卤代烷气体灭火剂对大气臭氧层有很强的破坏作用，臭氧层的破坏将严重威胁人类的生存环境和身体健康。

It is discovered that Halon fire-extinguishing chemical wreck the ozone layer by science determination and experiment . And its destroy will threaten human living space and body health .