烷基化试剂

可见，日，p一DAN的选择性与烷基化试剂之间存在一定的关系，烷基化基团的大小与沸石孔道尺寸都将影响产物的选择性。

It is obvious that the selectivity of B , B-DAN is related to the alkylating agents , the size of alkylate and the pore channel of zeolite will affect the selectivity of outcome .

萘与不同烷基化试剂在沸石上的烷基化反应

Alkylation of naphthalene with various alkylating agents over some zeolites

以甲苯为原料，对甲苯磺酰乳酸乙酯为Friedel-Crafts烷基化试剂，N-溴代丁二酰亚胺为溴化剂，合成了洛索洛芬的关键中间体&2-（4-溴甲基苯基）丙酸乙酯。

Ethyl 2 - ( 4-bromomethylphenyl ) propionate , key intermediate of Loxoprofen , was synthesized from toluene via Friedel-Crafts reaction and bromination .

叔丁醇不适于作外表面改性沸石催化的反应的烷基化试剂，其反应活性很低，且选择性无明显提升；

T-butanol is not suitable for alkylating agent of the reaction using modified zeolites as catalyst ;

从烷基化试剂、溶剂和分子筛催化剂的选择等方面，综述了分子筛催化下择形合成2，6-二烷基萘的研究进展。

Several factors that influence shape-selective synthesis of2,6-dialkylnaphthalene over zeolite such as alkylating reagents , solvents and selection of zeolites are reviewed .

最后，用对甲基苯磺酸酯做烷基化试剂，又得到化合物4的单烷基化产物（91.4%）与双烷基化产物（88.9%）。

Monoalkyl ( 91.4 % ) and dialkyl ( 88.9 % ) derivatives of compound 4 are afforded with methylsulphate as alkylation agent .

本文以聚苯乙烯氯球为原料，通过与4-氨基吡啶及烷基化试剂反应，制成聚苯乙烯支载N-烷基-N-苄基氨基吡啶催化剂。

Polystyrene - supported N - benzyl - N - alkyl - aminopyridine was prepared through chloromethylated polystyrene treated with 4 - aminopyridine and alkylation agents .

在手性相转移催化剂存在下，以N-二苯亚甲基甘氨酸叔丁酯为底物采用不同的烷基化试剂可以合成各种具有光学活性的α-氨基酸。

Synthesis of optically active α - amino acids has been realized by using chiral phase-transfer catalysts and N - ( diphenylmethylene ) - glycine tert-butyl ester as substrates .

国内煤化工的兴起使甲醇的供给相对过剩，故甲醇可以作为一种廉价易得的烷基化试剂。

Methanol supply is relative surplus for the rise of domestic coal chemical industry . Hence , methanol can be used as an alkylating agent which is easy to get and at a low price .

采用更为经济和毒性较小的氯乙酸乙酯-碱金属碘化物体系作烷基化试剂，方便地制得了下缘带有酯基基团的杯[4]芳烃。

Calix [ 4 ] arenes bearing ester pendants in the lower rim were prepared by a convenient method using the more economical and less toxic ethyl chloroacetate / alkali metal iodide as an alkylating reagent .

本文探讨了小檗胺酚羟基烷基化方法并提出了草酸酯作为选择性烷基化反应的试剂。

A method concerning the selective alkylation of phenolic group in berbamine by means of dialkyl oxalate was reported .

实验上合成N-烷基化苯胺有很多方法，但是这些方法需要的实验条件都是比较苛刻的，不是在高温下就是使用有毒的或者腐蚀性的烷基化试剂。

There are many methods to synthesis N-alkylated aniline in experiment . But these methods require that the experimental conditions are more stringent , either at higher temperature or using toxic or corrosive alkylating reagent .