- 更多网络例句与环己基相关的网络例句 [注:此内容来源于网络,仅供参考]
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In our paper,1-hexylcarbamoyl-5-fluorouracils and1-cyclohexyl-carbamoyl-5-fluorouracils were prepared through 5-fluorouracil reacting with hexyl isocyanate or cyclohexyl isocyanate by using dimethylaminopyridine as the catalyst.
以5-氟尿嘧啶(5-FU)、正己基异氰酸酯和环己基异氰酸酯为原料,在N,N-二甲氨基吡啶的催化下,通过N-脲化反应制成1-己基氨基甲酰基-5-氟尿嘧啶及1-环己基氨基甲酰基-5-氟尿嘧啶。
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The role of gold is to activate molecular oxygen and promote the decomposition of cyclohexyl hydroperoxide to target products, accounting for the high activity and selectivity of gold catalysts in cyclohexane oxidation.
金在环己烷氧化过程中的作用主要表现为活化分子氧,同时促进中间产物环己基过氧化氢分解为目标产物,从而表现出较高的活性和选择性。
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At present, since fluorobenzene liquid crystal and cyclohexyl crystal are very popular liquid crystals. some research have done on the synthesis of the intermediate, fluorophenol and alkylcyclohexylbenzene compounds in this thesis.
本论文的主要内容分为两部分:第一部分,针对目前液晶材料研究的热点:含氟液晶和环己烷类液晶,就其液晶材料中间体氟代苯酚和烷基环己基苯类化合物的合成进行研究。
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On the other hand, in catalytic oxidation the cyclohexyl hydroperoxide decomposed rather quickly, and then accelerated the reaction.And during the reaction, the concentration of cyclohexyl hydroperoxide kept very low and the chain propagation became the rate limiting step.
而在催化剂存在的情况下,环己基过氧化氢分解非常迅速,环己基过氧化氢浓度在整个反应过程中稳定在一个很低的水平,反应由氧化生成酮的链传递反应过程控制。
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The method ensures safety and enhances heat transfer, and can remarkably improve the oxidizing reaction speed of cyclohexane and the total selectivity of cyclohexanone, cyclohexanol and cyclohexyl hydrogen peroxide.
该方法具有安全性,强化了热量的传递,可显著地提高环己烷氧化反应速度,提高环己酮、环己醇和环己基过氧化氢的总选择性。
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This work, concentrated on the asymmetric allylation of aldehydes controlled by different chiral auxiliaries prepared from rotational pure tartaric acid, can be divided into three parts.The first part aims to review the developments of chiral drugs and asymmetric synthesis, from which derived the present research topic backgrounds and works.Synthesis and applications of allylation from aldehydes are the second part of the thesis. By optimizing the reaction conditions, such as solvents, temperature, time and chiral auxiliaries like N,N\'-dibenzyl tartamide, N,N\'-p-dimethylphenyl tartamide, N,N\'-o-dimethylphenyl tartamide, N,N\'-o-dichlorophenyl tartamide, N,N\'-a-dinaphyl tartamide, N,N\'-dicyclohexyl tartamide and N,N\'-diphenyl tartamide, ideal experimenttal conditions are obtained according to HPLC monitoring, as well as the auxiliaries\' recoveries experiments. Starting from benzaldehyde and 3-bromopropaldehyde, N,N\'-dibenzyl tartamide is considered the best auxiliary in this reaction.
本文介绍了醛的不对称烯丙基化反应,以光学纯酒石酸为原料,研究了不同构型手性配体在醛的烯丙基化反应中的立体选择性,全文共分三部分十个章节:第一部分对当前手性药物和手性技术进行了概述,并由此展开了本文的研究背景和任务;第二部分为有机合成部分,对醛的不对称烯丙基化反应进行了深入探讨,以苯甲醛为原料对反应条件进行优化,在优化的反应条件下对制备的七种可回收手性酰胺配体(N-苄基酒石酸二酰胺、N-对甲苯基酒石酸二酰胺、N-邻甲苯基酒石酸二酰胺、N-邻氯苯基酒石酸二酰胺、N-a-萘基酒石酸二酰胺、N-环己基酒石酸二酰胺和N-苯基酒石酸二酰胺)进行筛选,优化配体回收实验条件,最终确定出N-苄基酒石酸二酰胺在苯甲醛的不对称烯丙基化反应中具有较大优越性,结晶回收的手性配体光学纯度保持不变。
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The title compounds were synthesized by the reaction of symmetric N , N '-diarylthioureas with hexylamine in the presence of triethyl amine,and the intermediate N , N '-diarylthioureas were formed by the direct reaction of carbon disulfide and arylamines.
首先采用二硫化碳与胺直接反应得到对称的N, N'-二芳基硫脲,然后在三乙胺存在下与环己胺反应得到1-环己基-3-芳基硫脲。产物结构经核磁共振和质谱分析确证
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The synthesis of alkylcyclohexylbenzoic acid: take the synthesis of ethylcyclohexylbenzoic acid as a typical example. With the AlCl3 as the catalyst, cis+trans acetylcyclohexylbenzene is synthesized from the reaction of acetyl chloride, cyclohexene and benzene.
烷基环己基苯甲酸的合成研究:主要研究了乙基环己基苯甲酸的合成,以乙酰氯、环己烯、苯为原料,三氯化铝为催化剂,合成乙酰基环己基苯,用水合肼、氢氧化钾、一缩二乙二醇经过高温加热还原羰基(Wolff-黄鸣龙还原),将所得到的乙基环己基苯用乙酰氯进行傅克酰基化得到乙基环己基苯乙酮,所得中间体经过处理之后直接得到反式产物,将反式异构体的乙酰基氧化得到反式烷基环己基苯甲酸。
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The target molecules were synthesized through a Sonogashira coupling reaction of 1-trans-4-(trans-4-n-pentylcyclohexyl)cyclohexylacetylene and 4-iodo-2,3-difluoro- phenyl ether with total yields of 27%~28%.
目标化合物采用1-trans-4-(trans-4-正戊基环己基)环己基乙炔与4-碘-2,3-二氟苯基醚进行Sonogashira偶联反应制备,反应总产率27%~28%。
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Cyclohexylamine is mainly to be made sodium cyclamate, CBS accelerating agent, cyclohexanol, cyclohexanone, caprolactam, acetate fiber and nylon.
环己胺主要用于合成食品甜味剂环己基氨基磺酸钠和橡胶促进剂N-环己基-2-苯并噻唑次磺酰胺。
- 更多网络解释与环己基相关的网络解释 [注:此内容来源于网络,仅供参考]
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cyclohexyl:环己基
氨丙基(Aminopropyl)适合用于极性化合物,或在水性溶液中作为弱阴离子交换基团;苯基 (Phenyl)适合用于高芳香性化合物;氰丙基 (Cyanopropyl) 适合用于高极性到中极性化合物;环己基(Cyclohexyl) 适合用于高芳香性化合物;
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cyclohexyl acetate:乙酸环己酯
cycloheximide | 放线(菌)酮,环己酰亚胺 | cyclohexyl acetate | 乙酸环己酯 | cyclohexyl bromide | 环己基溴
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cyclohexyl methacrylate:甲基丙烯酸环己酯
cyclohexyl alkane 环己基烷烃 | cyclohexyl methacrylate 甲基丙烯酸环己酯 | cyclohexyl nitrate 硝酸环己酯
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cyclohexyl nitrite:亚硝酸环己酯
cyclohexyl nitrate 硝酸环己酯 | cyclohexyl nitrite 亚硝酸环己酯 | cyclohexyl 环己基
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Cyclohexyl isocyanate:环己基异氰酸酯
环己基甲醛Cyclohexanecarboxaldehyde365 | 环己基异氰酸酯Cyclohexyl isocyanate366 | 环戊二烯Cyclopentadiene366
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Cyclohexyl isocyanate:环己基异氰酸盐
乙酸环己酯 cyclohexyl acetate | 环己基异氰酸盐 cyclohexyl isocyanate | 环己胺 cyclohexylamine
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hexahydrobenzene; cyclohexane:六氢苯;环己烷
六氢苄醛;六氢苯甲醛;环己基甲醛 hexahydrobenzaldehyde; cyclohexanecarbaaldehyde | 六氢苯;环己烷 hexahydrobenzene; cyclohexane | 六氢苯甲酸;环己甲酸 hexahydrobenzoic acid; cyclohexanecarbaroxylic acid
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CALCIUM CYCLAMATE:环己基氨基磺酸钙
aclame阿力甜 | calcium cyclamate环己基氨基磺酸钙 | clam蛤,蚌;帘蛤;丽文蛤
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magnesium cyclamate:环己基氨基磺酸镁
eclampsia惊厥 | magnesium cyclamate环己基氨基磺酸镁 | musclamine肌胺
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potassium cyclamate:环己基氨基磺酸钾
pinch clamp弹簧夹;节流夹 | potassium cyclamate环己基氨基磺酸钾 | sodium cyclamate环己基氨基磺酸钠,甜蜜素