• 考察温度催化剂用量加料速率等因素苯乙烯甲基二氯硅烷硅氢加成反应的影响。

    The effects of temperature, the quantity of catalyst used, and reactant feed rate on hydrosilylation was discussed.

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  • 研究载液相催化剂制备及其3-丙烯与甲基二氯硅氢加成反应中的催化性能

    The preparation of supported liquid-phase platinum catalyst, and its catalytic property for hydro-(silylation) reaction of 3-chloropropene were studied.

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  • 新增投入运行,经甲基二氯硅烷纯度、水裂解工序操作性产品质量等指标验证达到预期的效果

    When new tower put into use, verifying the purity of dimethyldichlorosilane, operability of hydrolyzed and cracked process and product quality, it got the desired results.

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  • 实验研究直接法流化床合成甲基过程反应温度反应活性甲基二氯硅烷(DDS)选择性影响

    The effect of reaction temperature on reaction activity and selectivity of dimethyl dichlorosilane (DDS) in direct synthesis process has been investigated experimentally.

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  • 2,3-二氯-5-三氟甲基吡啶杀虫剂氟脲类合成农药关键中间体

    2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron.

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  • 南极永久性积雪空气分析大气历史甲基溴化物甲基化物仿二氯

    Atmospheric histories of halocarbons from analysis of Antarctic firn air: methyl bromide, methyl chloride, chloroform, and dichloromethane.

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  • 甲基海因为64. 45 %有效白色粉末颗粒

    Dichloro - dimethyl hydantoin is white powder or granules containing 64. 45 % avail able chlorine.

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  • 课题以蜜糖烷基甲基原料,选择环氧丙烷作为铵化反应的烷化剂。

    This new synthesis method of humectants used honey and di-methyl-dodecyl amine as material to produce a quaternary surfactant.

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  • 论还了2,4-二氯-3,5-硝基三氟甲基合成方法影响收率反应温度,反应时间催化剂进行了研究。

    This paper reported the synthetic method of 2, 4-dichloro-3, 5-dinitrotrifluorotoluene. The effect of temperature, time, and catalyst on yield were studied.

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  • 氧磷作用下,由芳氧基乙酸氨基硫脲经脱水环合,微波辐射快速合成一系列2氨基5芳氧亚甲基1,3,4唑类化合物。

    The reaction of aryloxy acetic acid with thiosemicarbazide in the presence of dehydrating agent, POCl_3, affords a series of 2amino5aryloxymethyl1,3,4thiadiazoles under microwave irradiation (MWI).

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  • 制备甲基纤维素卡波940主要混合基质氧化缓释凝胶剂质量符合2005年中国药典》凝胶项下的规定。

    The quality of the slow-release of chlorine dioxide prepared with sodium carboxymethyl Cellulose and carbopol 940 as the main mixed-matrix consistent with the 2005 edition of Chinese Pharmacopoeia.

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  • 样品溶解亚砜中,以正离子方式记录谱图,结果发现产生一个失去原子分子离子峰外,没有任何碎片峰。

    The samples were dissolved in dimethyl sulfoxide (DMSO) and the data were recorded by positive ion mode. No any other fragment was found except for little molecular ion which loses a chlorine atom.

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  • 介绍一种采用甲胺代替石灰反应生产仿的同时联产N,N-甲基酰胺工艺

    In this paper, a new chloroform production process by reaction of chlorinated oil with dimethyl amine instead of lime is introduced, in which N, N- dimethyl methanamide is coproduct.

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  • 二氯1,3 -(3,5 -甲基吡唑)丙烷合合成晶体分子结构

    Synthesis, Crystal and Molecular Structure of Dichloro 1, 3 Bis (3, 5 Dimethylpyrazolyl) Propane Palladium.

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  • 甲基丙基一种重要有机硅中间体,采用甲基三乙氧基硅烷烯丙基通过格式反应制得。

    Diallylethoxylmethylsilane is an important silicone intermediate. It was prepared by reaction of methyltriethoxylsilane with allyl chloride grignard reagent.

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  • 前言2,3-二氯-5-三氟甲基吡啶合成农药杀虫剂定虫除草剂禾灵杀菌剂氟啶胺关键中间体

    Abstrat:2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron , herbicide haloxyfop and bactericide fluazinam .

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  • 报道了一类1,1-取代(1)产物4-甲基-7-羟基香豆素反应异常缩合产物。

    This paper reported a kind of unusual products from the reaction of chlorides of 1,1-disubstitutedpropargyl alcohols with 4-methyl-7-hydroxycoumarin.

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  • 甲基丙烯酸、1,10-醇和硫磷为主要原料合成紫外光固化粘接性单体10-甲基丙烯酰氧癸基硫磷酸

    UV-curable adhesive monomer 10-methacryloyloxydecyl thiophosphoric acid dichloride was synthesized from the reaction of thiophosphoryl chloride with methylacrylic acid and 1,10-decanediol.

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  • 二氯甲基苯作为后联剂,聚丙烯接枝苯乙烯-乙烯苯纤维进行后交联反应制备出具有高比表面积后交联纤维。

    The post-crosslinking fiber was prepared by cross-linking PP-ST-DVB fiber with p-xylylenedichloride according to the friedel-crafts reaction and was given a series of synthesis tests.

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  • 名称甲基乙烯硅烷;

    Methylvinyldichlorosilane; Vinyl methyl dichlorosilane;

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  • 以邻三氟甲基苯胺为起始原料,催化剂盐酸-双氧水合成4 -- 2 -三氟甲基苯胺。

    4-chloro-2-trifluoromethyl aniline was synthesized from 2-trifluoromethyl aniline, using hydrochloric acid-hydrogen peroxide as the chlorination agent and cupric chloride as the catalyst.

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  • 本文应用同步多重合成新技术分别甲基树脂MBHA树脂上成功地合成了批抗生育寡肽类似物(16)。

    Two pentapeptides (1,2) and four tetrapeptides (3~6) were prepared successfully by simultaneous multiple peptide synthesis (SMPS) on the merrifield's resin and MBHA resin respectively.

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  • 氧杂环己烷溶剂通过聚乙2 70甲基苯磺酰反应合成了1 8冠6,率64 .4 %。

    Also, in dioxane solution, 18Crown6 was prepared in 64.4% yields by reaction of polyethylene glycol 270 and ptoluenesulfonyl chloride.

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  • 甲基碳酸酯BTC)代替光气,“一锅法”合成8种取代脲类除草剂产物结构元素分析IR确证。

    Eight substituted ureas herbicides were synthesized with bis(trichloromethyl) carbonate(BTC). The production structures were identified by elemental analysis and IR.

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  • 3,3′,5,5′-四甲基联苯酚和环氧丙烷为原料两步法合成了3,3′,5,5′-四甲基联苯缩水甘油

    3′, 5,5′-tetramethyl-diphenyl diglycidyl ether was synthesized from 3,3′, 5,5′-tetramethyl-diphenol and epichlorohydrin by two-step method.

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  • 3,3′,5,5′-四甲基联苯酚和环氧丙烷为原料两步法合成了3,3′,5,5′-四甲基联苯缩水甘油

    3′, 5,5′-tetramethyl-diphenyl diglycidyl ether was synthesized from 3,3′, 5,5′-tetramethyl-diphenol and epichlorohydrin by two-step method.

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