• Secondly diisothiocyanates were synthesized by the phase transfer reaction of bischloroformate and potassium thiocyanate;

    然后将双氯甲酸硫氰酸转移催化剂催化下反应生成二异硫氰酸酯;

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  • As a phase transfer catalyst polyethylene glycol can improve the selectivity of the reaction.

    乙二醇作为转移催化剂可以提高反应选择性

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  • As a phase transfer catalyst, polyethylene glycol could improve the selectivity of the reaction.

    聚乙二醇作为转移催化剂可以提高反应选择性

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  • The catalyst has high activity, selectivity and the characteristic of reaction controlled phase transfer catalyst.

    催化剂具有高活性、高选择性,且具有反应控制转移催化剂特性

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  • The results show that increasing reaction temperature, using acetone as cosolvent or sodium dodecyl sulfate as phase-transfer reagent can accelerate the reaction.

    结果表明升高反应温度丙酮共溶剂以十二烷基硫酸钠相转移剂均可使反应速度加快。

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  • The chitosan was prepared with 92% deacetylation degree using n-butanol and sodium hydroxide as a reaction medium and cetyltrimethylammonium bromide as a phase transfer catalyst.

    采用正丁醇-氢氧化钠反应体系,以十六烷基三甲基化铵转移催化剂,脱乙酰为92%壳聚糖

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  • A detailed introduction to the types, character, mechanism, influential factors and accomplishment method of phase transfer catalytic reaction under ultrasonic radiation re-viewed.

    本文超声波辐射转移催化反应类型特点机理及影响反应因素实现方法作了评述

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  • In the new reaction system, product can easily isolate and catalyst can be recycled owing to the phase transfer catalysis character of catalyst in reaction process.

    反应体系催化剂呈现反应过程转移催化特性产物分离,催化剂回收循环利用

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  • The paper reviews the effects of the phase transfer catalysts, base, temperature, time in the reaction.

    发现浓度、碱用量、反应时间转移催化剂的存在对反应影响较大。

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  • Ultrasound may replace phase transfer catalysts in phase transfer catalysis reactions and facilitate the reaction.

    转移催化反应体系中,超声能够取代相转移催化剂,使反应顺利进行。

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  • The mechanism of the reaction and that of phase transfer catalysis were studied. The process parameters were selected by optimum experiment.

    反应合成转移催化机理合成工艺进行了研究实验探索,条件优化实验确定较佳的合成工艺参数

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  • CONCLUSION The phase transfer catalyst has advantages of simple starting material, convenient operations and mild reaction conditions.

    转移法合成丁美酮具有所用试剂易得,操作方法简便反应条件温和,成本较低等优点。

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  • Their phase transfer catalytic ability for the reaction of N-alkylation, O-alkylation and oxidation were also determined.

    测定了对氧烷基反应、氮烷基化反应转移催化作用。

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  • The application of phase transfer catalysis in fluorination of halo-aromatic compounds, mechanism, variety and reaction condition of fluorination are reviewed in this article.

    转移催化剂种类原理反应条件以及它卤代芳香族化合物化反应中的应用等方面对相转移催化剂的作用进行概括总结。

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  • Benzyl chloride and isobutylaldehyde were transformed into muguet alcohol through phase-transfer reaction and catalytic hydrogenation.

    从氯化异丁相转移反应催化加氢的方法得铃兰

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  • With strong bases under ultrasonication and phase - transfer catalysis, the reaction of 7, 7 -dihalocarane and haloform can generate halogen exchanges.

    在强碱条件,用超声辐射使用转移催化剂,二卤降卤仿反应发生卤素交换

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  • In this paper, we investigated the arylation reaction ofp-amino acetylbenzene with ferrocene catalyzed by phase transfer catalyst.

    本文以对氨基苯乙酮铁为底物,转移催化剂存在的条件下发生重氮芳基化反应

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  • Quaternary ammonium heteropolyphosphatotungstate, as one kind of the phase transfer catalysts, has good catalysis activity in two phase catalysis reaction of micelle.

    磷钨杂多酸季铵盐作为转移催化剂催化反应具有良好催化效率。

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  • The phase transfer catalyzed Wittig reaction of allyl diphenyl phosphonium salt with substituted aromatic aldehydes using potassium carbonate as base provides 1, 3-dienes with good E-selectivity.

    本文报道二苯基型鏻取代在碳酸钾作用下液相转移催化反应

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  • The reaction is based on the treatment of epichlorohydrin with sodium stearate in the presence of phase transfer catalyst. About 90% of monoglycerides are obtained in quantitive yields.

    转移催化剂存在硬脂酸盐环氧氯丙烷反应,可获得含量90%左右脂肪酸甘油单酯。

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  • In it often accompany heat transfer, mass transfer, chemical reaction and phase change. Mutual interactions of mass, momentum, energy and heat among different phases are very complicated.

    气粒多相流动往往伴随着传热质、化学反应相变等,相与相间质量动量能量相互作用十分复杂。

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  • In this process, styrene arid sodium propionate is used as raw metalsm, styralyl propionate is synthesized by phase transfer catalysis reaction.

    本文报道了一种酸苏合香酯的合成工艺,研究了以苯乙烯及丙酸原料转移催化合成了丙酸苏合香酯。

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  • It was observed that the concentration of NO2 in the gas emission decreased greatly during oxidation and the phase transfer catalyzer as well as ultrasonic played important role in the reaction.

    研究发现氧化过程尾气NO2浓度明显减小转移催化剂超声波辐射作用对反应有重要作用

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  • Based on the principle of phase transfer catalysis, 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.

    甲氧基苯甲醛、三氯甲烷为原料,转移催化羰基加成法合成了对甲氧基苯乙醇

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  • Poly (N-vinyl carbazole) was modified to prepare azo-PVK by post-azo-coupling reaction with diazo salt as raw material using phase-transfer catalysts.

    我们以聚乙烯偶合组分,色基团对硝基苯重在相转移催化剂存在下,采用后重氮偶合方法,制备出偶氮化聚乙烯咔唑。

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  • A solid phase and a liquid phase are efficiently mixed in the reactor in order to enhance the heat and mass transfer efficiency during the reaction.

    反应器液两进行高效的混合强化反应过程传热效率

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  • The synthesis of benzyl-2-naphthyl ether by the reaction of 2-naphthol and benzyl chloride using phase transfer catalyst Bu_4NBr was studied.

    为了探索香料苄基-2-萘基合成方法,通过催化剂改进利用超声波技术改善催化条件,使苄基-2-萘基醚的合成过程向绿色化靠近。

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  • The synthesis of benzyl-2-naphthyl ether by the reaction of 2-naphthol and benzyl chloride using phase transfer catalyst Bu_4NBr was studied.

    为了探索香料苄基-2-萘基合成方法,通过催化剂改进利用超声波技术改善催化条件,使苄基-2-萘基醚的合成过程向绿色化靠近。

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