- 更多网络例句与乙氧基的相关的网络例句 [注:此内容来源于网络,仅供参考]
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At lower temperature, the interaction between the Ir particles and the adsorbed ethoxyl species is not strong enough to abstract H atom from the nearby CH3 group, and thus acetaldehyde acts as the key intermediate. Acetaldehyde can decompose to methane and CO and/or convert to acetone through decarbonylation.
低温时Ir粒子与吸附的乙氧基的相互作用的强度不足以从-CH3基团中提取H原子,此时乙醛是关键的反应中间物,乙醛可以裂解生成甲烷和一氧化碳或脱羰基生成丙酮。
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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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Nine new compounds were characterized, and they were: opuntioside Ⅰ(11), 4-ethoxyl-6-hydroxymethyl-α-pyrone (14),--ester (22), 1-butoxyl--malate (24), ethyl α-L-rhamnopyranoside (26), opuntioside Ⅱ(34), kaempferol 7-O-β-D-glucopyranosyl (1→4)-β-D-glucopyranoside (46), methyl α-D-glucopyranoside-6-(methyl 4-malate)-ester (47), and opuntioside Ⅲ(48). Opuntioside Ⅰ,Ⅱ,Ⅲ and 4-ethoxyl-6-hydroxymethyl-α-pyrone belong to the skelecton of α-pyrone.
新化合物分别是:仙人掌苷Ⅰ(11),4-乙氧基-6-羟甲基-α-吡喃酮(14),琥珀酸乙酯--酯(22),L--苹果酸-1-丁酯(24),乙基α-L-吡喃鼠李糖苷(26),仙人掌苷Ⅱ(34),山奈酚7-O-β-D-吡喃葡萄糖基(1→4)-β-D-吡喃葡萄糖苷(46),α-D-吡喃葡萄糖甲苷-6-(苹果酸-4-甲酯)-酯(47),仙人掌苷Ⅲ(48),其中仙人掌苷Ⅰ、Ⅱ、Ⅲ及4-乙氧基-6-羟甲基-α-吡喃酮均为α-吡喃酮骨架类型的新化合物。
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To develop an eco-friendly epoxy impregnating resin system for groundwall insulation of large generators, the curing reaction mechanism has been fully studied, the formulation and the curing techniques have been optimized, and the influence of different constitution on the curing reaction, microstructure, and final performances have been studied and characterized.In this paper, influences of different reactive organo-siloxanes on the curing reaction and performances of epoxy V.P.I.
本文研究比较了含有环氧基、氨基或乙烯基的反应性硅氧烷,包括:γ-缩水甘油醚氧丙基甲基二乙氧基硅烷、β-(3,4环氧环已基)乙基三乙氧基硅烷、γ-缩水甘油醚氧丙基三甲氧基硅、β-(3,4环氧环已基)乙基三甲氧基硅烷、γ-甲基丙烯酰氧基丙基三甲氧基硅烷、乙烯基三乙氧基硅烷和苯胺甲基三乙氧基硅烷对环氧V.P.I。
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The structures of these two molecules are almost the same with slight differences in bond lengths and bond angles. And compounds 1-3 are the first examples of this type containing amido and ethoxide groups.
而且到目前为止,Sn4O4的梯子状结构中同时含有氨基和乙氧基的化合物还未见报道,化合物1,2和3为首次合成此类化合物。
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Two benzothiazole ester compounds containing boron with different alkyl chain, Di-n-hexyl-[2-(2-benzothiazolylthio)] ethyl boric acid ester (BNS-1) and Dicyclohexyl-[2-(2-benzothiazolylthio)] ethyl boric acid ester(BNS-2), were synthesized and their tribological performance as additives in rapeseed oilwas investigated using a four-ball testing machine.
合成了两种含不同烷基链的含硼苯并噻唑酯类化合物,即二正己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-1)和二环己氧基-2-[(2-苯并噻唑基)硫代]乙氧基甲硼烷(BNS-2)。
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In this study, the vapour–liquid equilibria behaviour of the binary systems dipropyl ether + 2-ethoxyethanol and 1-propyl alcohol + 2-ethoxyethanol and the ternary system dipropyl ether + 1-propyl alcohol + 2-ethoxyethanol was experimentally investigated with the aim of testing the feasibility of using 2-ethoxyethanol as an entrainer to the extractive distillation.
本文研究了2种二元体系(1:二丙醚+ 2-乙氧基乙醇;2:1-丙醇+ 2-乙氧基乙醇)和1种三元体系(二丙醚+ 1-丙醇+ 2-乙氧基乙醇)和的气液平衡行为,旨在测试2-乙氧基乙醇是否适合作为萃取性蒸馏的共溶剂。
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This article reports a new kind of copolymer, non polar polar terpolymer : poly(styrene-butadiene-methyl methacrylate ) P(S-b-B-b-MMA prepared by anionic polymerization with n BuLi as initiator, 1,1 diphenylethylene as capping agent and lithium 2-(-methoxyethoxy) ethoxide as complex agent.
以正丁基锂为引发剂, 1 ,1-二苯基乙烯为戴帽剂, 2-(2-甲氧基乙氧基)乙氧基锂为络合剂,在环己烷、四氢呋喃混合溶剂中,采用阴离子聚合法,于-70℃~-40℃合成了非极性-极性的三嵌段共聚物聚苯乙烯-聚丁二烯-聚甲基丙烯酸甲酯,并借用GPC、1H-NMR、DSC、TEM、IR等仪器对共聚物进行了表征。
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Their structures were characterized by IR, 1H NMR, of which 4-chloro- 2-methyl-7-(2-bromoethoxy) isoflavone, 2, 4\'-dimethyl-7-(2-bromo-ethoxy)isoflavone and 2-methyl-7-(2-bromoethoxy) isoflavone are rarely reported so far.4\'-chloro-2-methyl-7-(3-bromopropoxy)isoflavone, 2, 4\'-dimethyl-7-(3-bromo- propoxy) isoflavone, 2-methyl-7-(3-bromopropoxy) isoflavone, 4\'-methoxy-2-methyl-7-(3-bromopropoxy) isoflavone and 4\'-hydroxy-2-methyl-7-(3-bromopropoxy) isoflavone were gained by reacting 7-hydroxy-2-methyl isoflavone derivatives with 1, 3-dibromo- propane, respectively.
第三章(来源:73ABC论文网www.abclunwen.com)在丙酮溶液中以K_2CO_3为碱,使溴乙氧基异黄酮和溴丙氧基异黄酮与咪唑偶合,以较高的产率合成出10种目标化合物:2-甲基-4′-氯-7-2-(1-咪唑基乙氧基异黄酮、2,4′-二甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-甲氧基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-羟基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-氯-7-3-(1-咪唑基丙氧基异黄酮、2,4′-二甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-甲氧基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-羟基-7-3-(1-咪唑基丙氧基异黄酮,经IR、~1H NMR、~(13)C NMR、元素分析等对其结构进行了表征,10种目标产物均未见文(来源:ABC论文cccccc网www.abclunwen.com)献报道。
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Organosilicon resin microparticles with phenyl and aminopropyl groups were prepared via the hydrolytic co-condensation of phenyltriethoxysilane,γ-aminopropyltriethoxysilane and diphenyldimethoxysilane under the catalysis of tetramethylammonium hydroxide.
在四甲基氢氧化铵水溶液的催化作用下,将苯基三乙氧基硅烷、γ-氨丙基三乙氧基硅烷和二苯基二甲氧基硅烷进行水解共缩聚制备氨丙基苯基有机硅树脂微粉。
- 更多网络解释与乙氧基的相关的网络解释 [注:此内容来源于网络,仅供参考]
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two-faced:两面的, 两面派的
swerveless 不转向的 坚定不移的 | two-faced 两面的, 两面派的 | barium ethoxide 乙醇钡 乙氧基钡
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vanillin:香兰素
甲基香兰素(以下简称为香兰素)(Vanillin)别名香兰醛或香草醛,化学名称为3-甲氧基-4-羟基苯甲醛;香兰素的同系物乙基香兰素(Ethyl Vanillin)化学名称为3-乙氧基-4-羟基苯甲醛.
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chloroacetate:氯代醋酸盐
chloroacetal | 氯乙缩醛, 氯乙醛缩二乙醇, 二乙氧基乙氯 | chloroacetate | 氯代醋酸盐 | chloroacetic | 氯乙酸的
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ethmonasal:筛鼻骨的
筛骨的 ethmoidal | 筛鼻骨的 ethmonasal | 乙氧基<>因(抗氧化剂) ethoxyquin
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barium ethoxide:乙醇钡 乙氧基钡
two-faced 两面的, 两面派的 | barium ethoxide 乙醇钡 乙氧基钡 | cascade aerator 阶式曝气装置
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ketal:缩酮
水型油墨中加入可水解的挥发性缩酮(Ketal)也可防止油墨酸败. 例如2,2-二甲氧基丙(或丁)烷,2,2-二乙氧基丙(或丁)烷等. 在酸存在下,缩酮是极易水解的. 每克分子缩酮水解后可产生一克分子酮和两克分子醇.
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Apes:烷基酚聚氧乙烯醚硫酸盐
前期乙氧基化的硫酸盐为40%烷基酚聚氧乙烯醚硫酸盐(APES)的衍生物因为其疏水基结构的不同而具有很大的差别一般它们与LAS具有相似的生物降解性(2)表面活性剂的亲水基性质对生物降解度有次要的影响,
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sulphate-ethoxylated alcohols:乙氧基化醇类的硫酸盐;乙氧基化醇类的硫酸酯
sulphate salinity 硫酸盐矿化度 | sulphate-ethoxylated alcohols 乙氧基化醇类的硫酸盐;乙氧基化醇类的硫酸酯 | sulphate-resistant cement 抗硫酸盐水泥
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acetyl salicylic acid:就是乙醯水楊酸, 是水楊酸的乙醯基化,就是阿斯匹林的成分
Ginkgo Biloba extract (銀杏萃取) --- 抗氧化作用強 | Acetyl salicylic acid就是乙醯水楊酸, 是水楊酸的乙醯基化,就是阿斯匹林的成分 | Phenoxyethanol --- 苯氧乙醇,作防腐劑用
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.aq:蒽醌
结果表明,不同光引发剂的引发活性从高到低按以下次序排列:二苯甲酮(BP),2-丙基硫杂蒽酮(ITX),2,2-二乙氧基苯乙酮(DEAP),Michler酮(MK),蒽醌(AQ),在用量低时,则ITX的活性最高.