查询词典 synthesis
- 与 synthesis 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
A better understanding of the role of PPAR in insulin action system will be critical in developing more efficacious and safe agent s that act on PPAR and benefit patients with type 2 diabetes. The main content is followed: Synthesis and analysis of 1,3-dicarbonyl compounds. Make use of easily available cheap reagent such as 2-naphthol, 6-hydroxyquinoline, 1,2-dibromoethane, 4- hydroxybenzaldehyde, dimethyl malonate, 2-{4- [(2-napthoxy)ethoxyl] benzyl} malonates and 2-{4 [(1,2,3,4-tetrahydro-6 -quinolinoxy)ethoxyl] benzyl } malonates were synthesized through 6-8 steps in virtue of Williamson, Knoevenagel reaction, Pd/C catalyzed hydrogenation with mild conditions and high yield. The total yield of 40-50%.
本论文的主要内容和研究结果如下: 1,3-二羰基类化合物的合成及分析,采用2-萘酚、6-羟基喹啉、1 ,2二溴乙烷、对羟基苯甲醛、丙二酸二甲酯等常见易得试剂,利用Williamson反应、Knoevenagel反应、钯碳加氢等条件温和且收率高的方法,分别合成了2-{4- [(2-萘氧)乙氧基]苄基}丙二酸衍生物和2-{4 [(1,2,3,4-四氢-6-喹啉氧基)乙氧基]苄基}丙二酸衍生物两个系列8个化合物,经6-8步反应,总收率为40-50%,具有一定绿色化学特性。
-
This dissertation aims to: improvement in regularity of ladderlike polysiloxane through strong H-bonding template and"half-water-hydrolysis"methods; synthesis of several functional polysilsequioxane with ethoxyl, hydro and aminopropyl groups respectively; and the preparation of nanoporous film with good mechanic properties from ladderlike functional polysilsesquioxane with intermolecular porogen via micro-phase separation process.
本论文旨在利用强氢键模板作用和"半水水解-脱氯化氢缩聚"的改进方法,提高反应性的梯形聚硅氧烷的规整度;合成乙氧基封端、含氢基和氨丙基的几种功能性梯形聚硅氧烷;以及探索利用含分子内成孔剂的梯形聚倍半硅氧烷通过微相分离制备低介电常数二氧化硅纳米微孔膜。
-
The kinetics of catalytic synthesis of ethyl acetate using cation exchange membrane catalyst was studied.
摘 要:研究了以阳离子交换树脂为催化剂合成乙酸乙酯的动力学。
-
AlCl3-MEIC was prepared by reacting 1-methylimidazolium and ethyl chloride ,and the best situation of synthesis was confirmed.
2应用正交实验法确定了合成1—甲基—3—乙基氯化咪唑这种有机盐的最佳反应条件,并成功地合成了这种有机盐。
-
On the base of molecular structure design, the mechanism and technique of the synthesis of 2-(acryloyloxy ethyl trimethyl-ammonium chloride/2-acrylamido-2methylpropane sulfonic acid/acrylamide (AETMAC/AMPS/AM) amphoteric terpolymers by radical co-polymerization in aqueous solution was studied systematically.
依据分子结构设计理论,将2—丙烯酰氧乙基—三甲基氯化铵/2—丙烯酰胺基—2—甲基丙烷磺酸/丙烯酰胺(AETMAC/AMPS/AM)三种单体进行水溶液自由基共聚,合成了AP系列两性离子聚合物。
-
Coking and deactivation of zeolite catalysts in the synthesis of propylene glycol ethyl ether from propylene oxide and ethanol at lower reaction temperature were studied in this thesis.
本文选择反应物与生成物都含有氧原子的自环氧丙烷和乙醇合成丙二醇乙醚作为典型反应,研究较低温度下在沸石催化剂上反应过程中的的积炭失活规律。
-
The invention relates to synthesis of an organic matter, in particular to a method for preparing ethyl pyruvate.
本发明涉及有机物的合成,具体的说是一种制备丙酮酸乙酯的方法。
-
The advantage and disadvantage of synthesis of ethyl lactate from different raw materials and by different methods are discussed.
总结了以不同原料和不同方法合成乳酸乙酯的优点和不足,对乳酸乙酯合成的发展趋势进行了展望。
-
This paper presents the synthesis of three kinds of amine such as 2-(methyl- sulonyl)ethylamine,3-propylamine and 2--ethylamine via three different methods.
本文采用三种不同的方法合成了2-乙胺,3-丙胺,2-乙胺等3个含砜基伯胺;还合成了3--x-吲哚甲酸甲酯(x=5,6,7), E-4-喹啉甲醛肟,E-6-氟-2-吡啶甲醛肟等三类芳环甲醛肟,其中吲哚类和吡啶类化合物未见文献报道。
-
Influened the synthesis of ferrocene by the sodium ethylate method were researched in this paper.
研究了乙醇钠法合成二茂铁的影响因素:不同原料、原料配比、温度、时间、反应体系的氛围等,在选定的较优条件下,三茂铁的产率达到81.3%,并对二茂铁在柴油中的助燃、消烟作用进行了初步考察。
- 推荐网络例句
-
As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
-
Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
-
But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。