• 目的介绍昆虫保幼激素蚊蝇合成工艺

    Objective:To introduce the synthetic technique of pyriproxyfen; Methods;

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  • 文章介绍醚的合成工艺反应条件催化剂

    This paper introduces its synthetic technology, reaction condition and reaction catalyst.

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  • 本文简要介绍近年来各类饱和合成方法

    In this paper some newer methods for the synthesis of saturated cyclic sulphides were presented briefly.

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  • 首先,对沸点起始剂酯醚的合成工艺进行了研究。

    First, the preparation process of low boiling point initiator polyetherswas moditied.

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  • 发明涉及烯丙基缩水甘油合成方法有机合成化学技术领域

    The invention relates to a method for preparing allyl glycidyl ether, and belongs to organic synthetic chemistry technical field.

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  • 实验结果表明适当的微波辐射可以加速十二烷基缩水甘油的合成反应而且操作简便

    The experimental results showed that the proper microwave irradiation could speed up the reaction of dodecyl glycidyl ether and give high yield with simple operation.

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  • 四氢吡合成脱除方法介绍了二氢吡喃这种羟基保护试剂十几年来有机合成中的应用

    As an effective protection for hydroxy group in alcohols and phenols, the methods for the formation of tetrahydropyran ether and its cleavage employed in the last 15 years are reviewed.

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  • 本文研究磺酸化聚苯乙烯树脂酯化酯交换缩醛合成的合成(口)呐重排反应中的应用

    This paper reports the study on the sulfonated polystyrene resin used in esterification, transesterification, synthesis of acetals or ketals, synthesis of ether and rearrangement reaction of pinacol.

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  • 稀释十二烷基缩水甘油合成影响产品质量的因素进行研究,并以十二、十四混醇为原料进行了对比试验。

    Dodecyl glycidyl ether is a good reactive diluent with low toxicity and no irritation. The studies were concentrated on the synthesis and the factors effecting the quality of the diluent.

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  • 本文对的二甲硅基双烯合成反应机理反应条件进行了探讨,在此基础上合成四个二甲硅基双烯醇较高

    The synthetic mechanism and conditions of dimethylsilyl bis-enol ethers of ketones were studied and four dimethylsilyl his-enol ethers of ketones were synthesized and the yields were high.

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  • 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。

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

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  • 金属络合物催化不对称氧化合成手性亚砜有效方法

    The most efficient way to generate chiral sulfoxides is asymmetric oxidation of prochiral sulfides Catalyzed by chiral metal complexes.

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  • 合成包含单链长双链长的聚氧乙烯磷酸酯(MHPEPE表面活性剂

    A surfactant mixture (MHPEPE) including two components, one is single-tailed and the other double-tailed, is synthesized.

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  • 我们实验中我们合成烷基聚乙二醇磺酸盐(APES),一种电解稳定剂,试用于浸酸浴中。

    In our experiment, we synthesised alkyl polyglycol ether sulfonates (APES), electrolytically stable fatliquor, and tried to apply it in the pickle and tanning bath.

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  • 介绍表面活性剂烷基二苯磺酸合成生产应用情况。

    The synthesis, production and application of the surfactant alkyl diphenyl ether disulfonate were reviewed.

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  • 以二甲酰原料合成一种新型的激光光敏刺——4 -苯氧基二甲酮(PBZP)。

    A new photoinitiator, 4-phenoxy benzophenone (PBZP), was synthesized and characterized using diphenyl ether and benzoyl chloride as raw material.

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  • 报道新型有机分子——方向分枝化合物合成

    New organic molecules the three directional ether bond branched compounds were designed and synthesized.

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  • 论文主要开展了乙烯基苯并噻唑衍生物选择性合成方法研究。

    The dissertation describes some selective methods for the synthesis of alkenyl sulfides and benzothiazole derivatives.

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  • 采用一步合成4 ,4 '-甲烷二环已基二异氰酸酯HMDI)、扩链剂1,4 -二醇(BDO)为硬段,四氢呋喃PTMG)为软段的脂肪聚氨酯

    The one step method was adopted in this study to synthesize aliphatic polyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).

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  • 采用乙二醇单丁脱水方法合成高效具有类似丁基卡必醇结构萃取剂体系探讨了其合成工艺。

    Hoping for dibutyl carbitol(DBC)through the dehydration of glycol butyl ether, a new highly effective extractant system for gold with structure similar to DBC was synthesized in this paper.

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  • 目的研究菊酯合成工艺路线及其常见卫生害虫杀灭效果

    Objective To study the composition route and efficacy against insects of etofenprox.

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  • 介绍了苯特点化学合成方法

    This paper describes characteristics of insect control and method of chemical synthesis of fenoxycarb, an insect growth regulator.

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  • 阐述二甲基合成反应所用催化剂选择反应器催化剂装填高度计算

    This paper expounds the selection of the catalyst of the. synthetic reaction of dimethyl sulfide and the calculation of the loading height of the catalyst in the reactor.

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  • 本文首次报道新的高分子固载树脂合成及其水解反应中的应用,此树脂有效三相催化剂

    This paper first reports the synthesis and applications in hydrolysis and etherification of a new polymer supported quaternary ammonium resin, which is an effective triphase catalyst.

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  • 采用官能度的聚氧化丙烯醇、聚乙二醇合成吸水膨胀在0~200%的聚氨酯弹性体

    Using tri-functionality polyoxytrimethylene alcohol ether and polyethylene glycol, synthetize polyurethane elastomer with water absorption expansion rate of0~200%.

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  • 本文合成了分子中含有基团另一个基团羧酸酰胺的萃取

    In this paper several extractants containing a thioether group and another group such as carboxylic acid, ester or amide were synthesized.

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  • 研究了无催化剂存在时,溶剂硫化钠用量反应时间反应温度氯化硫化钠合成二苄基硫醚的影响

    Effects of solvent, sodium sulfide dosage, reaction time and reaction temperature in syn thesis of dibenzyl sulfide from benzyl chloride with sodium sulfide without catalyst were studied.

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  • 介绍了乙二醇单异丁反应机理原料摩尔、反应温度反应时间等因素对合成反应影响

    This paper dealt with reaction mechanisms and synthesis and the effects of raw materials mole ratio, reaction temperature and reaction time.

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  • 介绍了乙二醇单异丁反应机理原料摩尔、反应温度反应时间等因素对合成反应影响

    This paper dealt with reaction mechanisms and synthesis and the effects of raw materials mole ratio, reaction temperature and reaction time.

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