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Two magnetic triphase catalysts of comb-like polyether s supported by γ-Fe2O3 were synthesized, and their catalytic behaviors in the iodo-substitution, etherization and the addition reaction of dichlo-rocarbene to styrene were also investigated.
以表面经偶联剂修饰的γ-Fe2O3为载体,通过聚分别与乙二醇单甲醚和一缩二乙二醇单甲醚的醇钠盐反应,合成了两种磁性梳状聚醚三相相转移催化剂,研究了它们在碘代、二氯卡宾对双键加成和混合醚制备反应中的催化活性。
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Two triphase catalysts of comb-like polyether s supported by silicas were synthesized,and their catalytic behavior in the iodo-substitution,etherization and the addition reaction of dichlorocarbene to styrene were also studied.
以表面经偶联剂修饰的二氧化硅为载体,通过聚(β-氯乙基缩水甘油醚)和醇钠反应,合成了两种梳状聚醚三相转移催化剂,研究了它们在碘代、二氯卡宾对双键加成和混合醚制备反应中的催化活性。
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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。
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Methods The propylbridged biferrocenyl substituted pyridazinone was synthesized by the reaction of propylbridged biferrocene with ethyl succinyl chloride, and then condensed with hydrazine hydrate.
双二茂铁丙烷先与丁二酸单乙酯酰氯发生酰化反应,生成的1,4酮酸酯再与水合肼缩合得到含有双二茂铁丙烷的哒嗪酮衍生物。
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Ionic liquids of 1-carboxymethyl-3-ethylimidazolium chloride, 1-methoxyethyl- 3-ethylimidazolium chloride ([C2OC1-EIM]Cl) and 1-[2-(2-chloroethoxy)ethyl]-3-ethylimidazolium chloride ([Cl-C2OC2-EIM]Cl) were synthesized, and their chemical structures were confirmed by FT-IR and 1H NMR.
合成了三种含有羧基或醚基的离子液体, 1-羧甲基-3-乙基咪唑氯化物、1-甲氧乙基-3-乙基咪唑氯化物([C2OC1-EIM]Cl)和1-[2-(2-氯乙氧基)乙基]-3-乙基咪唑氯化物([Cl-C2OC2-EIM]Cl),用FT-IR和1H NMR对它们的化学结构进行了表征。
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Methods Gelators of N-lauroyl-l-alanine methyl esterand N-lauroyl-l-alanine ethyl esterwere synthesized with l-alanine methyl ester,l-alanine ethyl ester and lauroyl chloride as materials.
方法以l-丙氨酸甲酯盐酸盐、l-丙氨酸乙酯盐酸盐和月桂酰氯为原料,合成月桂酰-丙氨酸甲酯凝胶因子及月桂酰-丙氨酸乙酯凝胶因子,采用IR、1H-NMR、MS对其结构进行表征,并对其熔点、热稳定性、在各种植物油中的最小胶凝质量浓度、相转变温度等基本性质进行了研究。
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Diallylethylamine was synthesized from ethylamine, allyl chloride and alkali. The structure was characterized by 1H NMR, IR and elemental analysis.
以乙胺、烯丙基氯和碱为原料合成了二烯丙基乙胺,其结构经1H NMR,FT-IR和元素分析表征。
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Simetryne is synthesized from cyanuric chloride, ethylamine and sodium methyl mercaptide in solution of the trichloroethylene.
以三聚氯氰、乙胺和甲硫醇钠为原料,以三氯乙烯为溶剂制备了西草净。
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The zeolite-based adsorbent with crystallinity and purity was synthesized by self-transformation of coal gangue in vapor phase of ethylamine and water at a range of 373K-400K,and the preliminary study on its adsorption feature was made.
研究了373-400K温度范围内,煤矸石在乙胺和水的蒸汽相中自转变合成纯度、结晶度均较高的沸石基吸附剂的过程,并对其吸附性能作了初步研究。
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It was shown that MFI/MFI core-shell zeolite with high Si/Al shell could be synthesized by using ethylamine rather than TPAOH as organic template under mild hydrothermal conditions.
考察了晶化温度和晶化时间对高硅壳层MFI/MFI核壳型沸石分子筛的合成的影响,其适宜的合成条件为晶化温度高于130 ℃,晶化时间19 h。
- 推荐网络例句
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I didn't watch TV last night, because it .
昨晚我没有看电视,因为电视机坏了。
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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.
今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。
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I'm running my simile to an extreme.
我比喻得过头了。