环己

基本解释 (translations)

hexamethylene  ·  hexanaphthene

与环己相关的网络例句 [注：此内容来源于网络，仅供参考]

Sodium cyclohexanoloxyacetate was synthesized by 1mol︰1.15mol of cyclohexyl sodium alcoholate to sodium chloroacetate at 135145℃.The reaction time was 2.5h and the yield was about 81%.The sodium cyclohexanoloxyacetate was acidified by HCl to get the intermediate product,2-cyclohexanoloxyacetic acid.

以摩尔比为1︰1.15的环己醇钠和氯乙酸钠为原料，在135145℃下反应合成了环己氧基乙酸钠，反应时间为2.5h，收率约为81%，再将环己氧基乙酸钠用盐酸酸化制得中间体环己氧基乙酸。

The commercial processes of cyclohexane oxidation to cyclohexanone and cyclohexanol generally show many problems, such as low conversion, poor selectivity, complicated technology, high-energy consumption and environmental pollution. So it seems to be of great academic and practical interesting to study and develop highly efficient and environmentally friendly catalytic cyclohexane oxidation processes.

现有的环己烷氧化制环己酮和环己醇生产工艺普遍存在转化率低、选择性差、工艺复杂、耗能大和对环境污染严重等问题，这就使得研究和开发高效、环境友好的环己烷催化氧化工艺具有重要的理论意义和实用价值。

The result was compared with oxidations of cyclohexene without irradiation and at irradiation without catalyst.

另外，本文还研究了各种类型的催化剂在中压汞灯下光催化环己烯的氧化反应，结果表明，无论上述的哪种催化剂，在中压汞灯下光催化环己烯氧化反应，都得不到环氧环己烷，生成的产物主要为水和二氧化碳。

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。

The reaction conditions of synthesizingcyclohexyl acetate catalyzed with ammonium ferric sulfate dodecahydrate NH4Fe(SO42.12H2Oare studied .The yield of cyclohexyl acetate can reach 87.2% under mole ratio of aceticacid,cyclohexyl alcohol and ammonium ferric sulfate is 1∶0.44∶0.02,cyclohexane as solvent ,refluxing and segregating water for 60min.

研究了NH4Fe(SO4)2.12H2O催化合成乙酸环己酯的反应条件，当乙酸、环己醇和硫酸铁铵的摩尔比为1∶0.44∶0.02，以环己烷为溶剂，回流分水60min，乙酸环己酯收率达87.2%，在相同反应条件下，合成了甲酸环己酯(收率为68.5%)、丙酸环己酯(收率为59.4%)和丁酸环己酯(收率为21.6%)。

In the absence of organic solvent and phase-transfer reagent, the catalytic oxidation of cyclo- hexene to adipic acid with aqueous 30% hydrogen peroxide can be achieved in the presence of tungstic acid/acidic organic additive.

以钨酸/有机酸性添加剂为催化体系，在无有机溶剂、相转移剂的情况下，催化 30%过氧化氢氧化环己烯合成己二酸。当钨酸∶有机酸性添加剂∶环己烯∶过氧化氢=1∶1∶40∶176(摩尔比，钨酸用量为 2.5 mmol)时，使用有机酸性添加剂考察钨酸的催化性能，结果表明以钨酸/间苯二酚催化氧化环己烯的催化效果最优，反应 8 h 时己二酸分离产率达 90.9%、纯度为～100%；而不使用有机酸性添加剂时，己二酸分离产率只有 72.1%，产品纯度为 96.2%。

Good thermal stability and self-extinguishing behavior was observed with the cured polybenzoxazine resins. Second, furan-containing benzoxazine monomers, P-FBz, BPA-FBz, and 4FP-FBz were prepared using furfurylamine as a raw material. Formation of furfurylamine Mannich bridge networks in the polymerizations of P-FBz and BPA-FBz increased the cross-linking densities and thermal stability of the resulting polybenzoxazines. P-FBz and BPA-FBz- based polymers also exhibited high glass transition temperatures above 300℃, high char yields, and low flammability with a limited oxygen index value of 31. The dielectric (Dk3.21–3.39) and mechanical properties (high storage modulus of 3.0–3.9 GPa and low coefficient of thermal expansion of 37.7– 45.4 ppm) of the P-FBz and BPA-FBz-based polymers were superior or comparable to other polybenzoxazines. 4FP-FBz used for polybenzo- xazine modification by means of formation of benzoxazine hybridation with P-FBz.

第二部份以2-呋喃甲胺为起始物，制备了P-FBz、4FP-FBz与BPA-FBz 三个含呋喃官能基之氧代氮代苯并环己烷的单体；BPA-FBz与P-FBz於开环聚合中形成之Mannich bridge网状结构有效地提升聚氧代氮代苯并环己烷聚合物之交联密度与热安定性；Poly与Poly具有大於300℃之玻璃转移温度、高的焦炭生成率与具有31之极限氧指数(Limited oxygen index， LOI)的难燃性特质，Poly与Poly之介电常数(Dk=3.21~3.39)与机械性质[3.0~3.9 GPa的储存模数与37.7~45.4ppm之低热膨胀系数( Low coefficient of thermal expansion， Low CTE)]均较其他聚氧代氮代苯并环己烷为优；4FP-FBz具有低之介电常数(Dk=2.7)，以其作为降低介电常数之反应型改质剂，与P-FBz混成，证实可有效地降低Poly的介电常数。

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。

According to the results of the former study in our laboratory, trans-1, 2-cyclohexanediol is produced with a lot of acids and water, for extraction of trans-1, 2-cyclohexanediol from the solution, ethyl acetate and butyl acetate were used as extraction reagents, the solubility data of the trans-1, 2-cyclohexanediol in corresponding mixed solvents of some sorts of acetates and water are needed.

根据本实验室前期研究结果可知，反式-1，2-环己二醇是在酸性和大量水存在的条件下得到的，为了把反式-1，2-环己二醇从反应液中萃取出来，本工艺所采用的萃取剂是乙酸乙酯和乙酸丁酯，需要获得反式-1，2-环己二醇在这些酯类与水混合溶剂中的溶解度数据，因而对反式-1，2-环己二醇进行相关固液相平衡的研究是非常迫切和必要的。

The results indicated the ally1 carbon of cyclohexene was catalytically oxidized by molecular oxygen at atmospheric pressure in the presence of the polymer complex and a trace of HOAc at 70℃, which afforded corresponding alcohol, ketone and hydroperoxide acting as intermediate.

结果表明，70℃时，以微量醋酸为添加剂，在催化剂的催化作用下，以常压氧气氧化环己烯，得到烯丙基位的氧化产物环己烯醇、环己烯酮和中间产物环己烯过氧化氢。

与环己相关的网络解释 [注：此内容来源于网络，仅供参考]

cyclohexanol：环己醇

cyclohexane 环己烷 | cyclohexanol 环己醇 | cyclohexanone 环己酮

Isobornyl Cyclohexanol：环己异龙脑酯

环己烯 Cyclohexene | 环己异龙脑酯 Isobornyl Cyclohexanol | 环己酰亚胺 cycloheximide

methyl cyclohexanone：甲基环己酮

本标准是为工作场所有害因素职业接触限值配套的监测方法,用于监测工作场所空气中脂环酮和芳香族酮类化合物[包括环己酮(Cyclohexanone)甲基环己酮(Methyl cyclohexanone)和异佛尔酮(3,5,5-三甲基-2-环己烯-1-酮,Isophorone)等]的浓度.

Cyclohexanone hydroperoxide：过氧化氢环己酮

Cyclohexanone 环己酮 | Cyclohexanone hydroperoxide 过氧化氢环己酮 | Cyclohexanone peroxide 过氧化环己酮

Cyclohexene：环己烯

环己烷 cyclohexane | 环己烯 Cyclohexene | 环己异龙脑酯 Isobornyl Cyclohexanol

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

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

cyclohexyl nitrate：硝酸环己酯

cyclohexyl methacrylate 甲基丙烯酸环己酯 | cyclohexyl nitrate 硝酸环己酯 | cyclohexyl nitrite 亚硝酸环己酯

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

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