乙酯

Chloroacetic acid,chloromethyl ether,acetone,mphenylenediamine,butyl acetate,ethyl acetate,methylene chloride,ethylene dichloride,dioxane.

氯乙酸，氯甲醚，丙酮，间苯二胺，醋酸丁酯，醋酸乙酯，二氯甲烷，二氯乙烷，二氧六环。

A base-catalyzed novel olefination methodology based on elimination of p-toluenesulfonamide:Treatment of diethyl cyanomethylphosphonate with catalytic amount of basegave the corresponding phosphoryl-stabilized carbanion, which added to the carbon-nitrogen double bond of N-tosyl imines.

新形成的氮负离子进一步攫取另一分子膦酸酯的活泼亚甲基氢形成加成产物同时再生出膦酰基稳定的碳负离子。加成产物消除对甲苯磺酰胺，高度立体选择性地得到-α-氰基-β-芳基-乙烯基膦酸二乙酯。

Then we completed the first total synthesis of-Plakoridine A using Eschenmoser couping reaction as akey step. During the synthesis we found the choice of protecting groups and the configuration of the chiralcenter of the substrate play an important role to the key Eschenmoser reaction,so we think our successwould be of guide for synthesizing other polysubstituted pyrrolidines or piperidines.

在论文的第一章中，我们先以易得的对羟基苯乙酸乙酯为原料经多步反应制得了所需的β氨基酸酯，然后利用立体选择性的Aldol缩合反应和内酰胺化反应制得了Plakoridine Alactam，随后，以Eshenmoser缩合反应为关键步骤完成了生物碱-Plakoridine A的首次不对称全合成。

A new type of polyaspartic esters secondary amine called PAE-b was prepared from prime amine 4,4'-methylenebis and dialkyl maleates via a Michael Addition Reaction.

通过伯胺4，4'-二氨基环己基甲烷与马来酸二乙酯的Michael加成反应，合成1种新型聚天门冬氨酸酯仲胺。

Application of reverse micella enzyme system in oil industry;2. Synthesis of ethyl oleate catalyzed by Lipex lipase in AOT/isooctane reverse micella r system was studied.

在二-(2-乙基己基)琥珀酸酯磺酸钠和异辛烷构建的逆胶束体系中，以Lipex脂肪酶为催化剂，合成了油酸乙酯，考察了各影响因素对其产率的影响，并进行了脂肪酶紫外荧光检测和体系粒度分析。

In this paper,we obtained an Aspergillus niger produing high feruloyl esterases activity by selective medium and reselected by solid state fermentation from the isolated strains from soil.

从自然界中采集土壤样本，使用阿魏酸乙酯为唯一碳源的选择性培养基；进行初筛、固态发酵产酶试验、复筛得到1株高产阿魏酸酯酶的菌株，通过形态学观察鉴定为黑曲霉。

The results indicated that new Lewis acid ferric potassium alum was a green catalyst for the synthesis of ethyl lactate.

研究了新型Lewis酸铁钾矾的制备，并以该Lewis酸为催化剂，通过乳酸和乙醇反应合成乳酸乙酯，考察了催化剂用量、反应时间、酸醇物质的量比对酯化率的影响。

In this thesis, narrow polydispersity glycidyl methacrylate based di- and tri-block copolymers, with self-catalysis and self-initiation behaviors by incorporation of 2- ethyl methacrylate blocks, were synthesized via ambient temperature atom transfer radical polymerization.

本课题通过引入甲基丙烯酸(2-N， N-二乙胺基)乙酯嵌段，采用室温原子转移自由基聚合，合成出分子量分布窄的具有自催化和自引发行为的甲基丙烯酸缩水甘油酯基二嵌段和三嵌段共聚物。

The swelling properties of epoxy vinyl ester resin/2-hydroxyethyl methacrylate copolymeric hydrogels were investigated.

该文研究了酚醛环氧型乙烯基酯树脂/甲基丙烯酸-β-羟乙酯共聚水凝胶的溶胀性质。

A series of hydrogels based on macromonomer novolac epoxy vinyl ester resin and hydrophilic-2-hydroxyethyl methacrylate were synthesized by bulk copolymerization.

采用大分子单体酚醛环氧型乙烯基酯树脂与亲水性单体甲基丙烯酸-β-羟乙酯为原料，以本体聚合方法制备了一系列新型水凝胶。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。