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以三甲胺及一氯乙酸为原料合成甜菜碱。Beet alkali was synthesized from trimethylamine and chloroacetic acid.
本文重点介绍间歇式生产氯乙酸的工艺技术。In this paper, the batch process to produce chloroacetic acid was introduced.
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经改进,氯乙酸产品水溶后澄清透明。After improvement, chloroacetic acid products dissolved in water were clear and transparent.
开发了以氯乙酸为原料,用亚硫酰氯进行氯化反应,“一锅法”合成氯乙酰氯,并且提高了产品纯度和收率。CAC was synthesized by means of "one pot process" with chloroacetic acid and thionyl chloride in this paper.
以乙酰丙酮及尿素为主要原料合成4,6-二甲基-2-羟基嘧啶中间体,再与氯乙酸反应合成4,6-二甲基-2-羧甲氧基嘧啶。Then the intermediates reacted with chloroacetic acid to synthesize 4,6-dimethyl-2-carboxy methoxy pyrimidine.
以氯乙酸母液和氢气为原料,开发了氢解制氯乙酸的新工艺。A new process of production of chloroacetic acid from mother liquor of chloroacetic acid by hydrogenolysis has been developed.
以氯乙酸和硫氢化钠为原料,常压合成了巯基乙酸。The mercaptoacetic acid was synthesized under atmospheric pressure using chloroacetic acid and sodium hydrosulfide as raw materials.
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氯乙酸水解生成乙醇酸是甘氨酸合成的平行反应,也是甘氨酸合成的主要竞争性副反应之一。Hydrolyzing ammondysis chloroacetic acid to produce glycolic acid is a parallel and a competitive side reaction in synthesis glycine.
介绍了G101油井水泥缓凝剂的研制方法,并对其性能进行了初步评价。Cement retarder G101 is prepared by glucose , chloroacetic acid and alkali. The synthetic method and evaluation of G101 are presented.
四氯化锡对由氯乙酸和异丙醇合成氯乙酸异丙酯的酯化反应具有较高的催化活性和选择性。SnCl 4 has high catalytic activity and selectivity in the synthesis of isopropyl chloroacetate from isopropanol and chloroacetic acid.
在磷酸介质中,利用亚硝酸根催化溴酸钾氧化亮绿和甲基橙褪色的指示反应,建立催化光度法测定痕量亚硝酸根的新方法。Based on the catalysis of nitrite on oxidation of brilliant green by potassium bromate in a buffer solution of chloroacetic acid with pH 2.
方法二以对氟苯胺和氯乙酰氯为起始原料,然后进行烷基化成环。Second method, p-fluoroaniline and chloroacetic chloride chloroacetyl chloride were used as initial materials and alkylation was carried out.
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我们分别以氯乙酸和氯乙酸乙酯为原料,亚硫酸钠为磺化剂合成了目标产物。The target product was synthesized by using chloroacetic acid and ethyl chloroacetate as raw material and sulfite sodium as sulfonating agent.
以硬脂酸、三乙醇胺、氯乙酸为原料,在一定条件下合成了三乙醇胺脂肪酸酯甜菜碱。Stearic acid, triethanolamine and chloroacetic acid were used to synthesize, under some conditions, betaine of triethanolamine fatty acid ester.
在碘化钠作用下,芳酰基硫脲与氯乙酸甲酯发生成环反应,一步合成了2-吗啉基-4-芳基噻唑-5-甲酸甲酯。Aroylthiourea reacted with methyl chloroacetic ester in the presence of NaI to afford 2-morpholin-4-aryl-thiazole-5-carboxylic acid methyl ester.
研究了三氯甲苯和氯乙酸在催化剂存在下反应生成氯乙酰氯和苯甲酰氯的工艺条件。The reaction of benzotrichloride and chloroacetic acid to form chloroacetyl chloride and benzoyl chloride in the presence of catalyst was studied.
研究了氯乙酸经甲醇甲酯化后,用气相色谱法测试一氯乙酸与二氯乙酸的含量。The content about monochloroacetic acid is determinated and dichloroacetic acid by GC after the chloroacetic acid is methoxy-carbonylated by carbinol.
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为了改善纤维的吸湿性能,采用氯乙酸处理纤维素纤维来制备羧甲基纤维素纤维。In order to improve the hydroscopic property of fibers, cellulose fibers were treated with chloroacetic acid to prepare carboxymethyl cellulose fibers.
本文研究与探讨了用氯乙酸为醚化剂制备羧甲基淀粉醚的反应条件。This article studies and discusses the reaction conditions of synthesizing carboxy methyl amylum ester by using chloroacetic acid as etherification agent.
以重氮甲烷为酯化剂,用气相色谱法对氯乙酸生产的中控分析进行了研究。A new method of gas chromatographic analyses in the production of chloroacetic acid for process control using diazomethane as esterification agent is studied.