查询词典 chloroacetic

Therefore, Chinese Chloroacetic acid industry needs to improve present production technics, to increase production capacity and equipment standard, develop and take advantage of newfashioned efficient catalyst, make better manners and methods for controlment, to reinforce recycle and synthetically utilize mother liquor,so as to raise product quality and level, reduce production cost, decrease environment pollution, increase economic benefits.

因此，中国氯乙酸行业要改进现行生产工艺，提高生产规模与装备水平，开发利用新型高效催化剂，改进控制手段与方式，加强母液的回收与综合利用，从而提高产品质量和档次，降低生产成本，减少环境污染，增加经济效益。

Chapter two 4-Hydroxybenzoic acid is connected with PEG6000 through defoliant DCC at rooom temperature, then the product is refluxed with chloroacetic acid in acetone to afford PEG-bound phenyloxyacetic acid, which is reacted with thionyl chloride, ammonium thiocyanate and arylamines in turn to give PEG-bound disubstituded thioureas. After the cleavage with sodium methoxide in methanol, the eleven disubstituted thioureas are obtained.

第二章 利用PEG6000作载体，通过脱水剂DCC在室温下将对羟基苯甲酸以酯键连接在PEG6000上，再与氯乙酸在较温和的条件下生成PEG6000支载的芳氧乙酸，然后，依次与亚硫酰氯、硫氰酸铵、芳胺反应，生成PEG6000支载的硫脲，最后用甲醇钠的甲醇溶液切割PEG，得到了十一种1，3-二取代硫脲。

A new method of gas chromatographic analyses in the production of chloroacetic acid for process control using diazomethane as esterification agent is studied.

目前企业生产分析按照国家专业标准﹝1﹞进行，但分析周期长，不能对反应过程进行有效地实时控制，生产过程的实际中控方法为密度法。

It was studied in this thesis the preparation of Artemisia glue, under the condition of alkali, chloroacetic acid was used as etherification agent and the properties, structures and application in quick-frozen dumpling were researched too.

本论文主要研究了以沙蒿胶为原料，氯乙酸为醚化剂，在碱性条件下合成羧甲基沙蒿胶的工艺，并研究了羧甲基沙蒿胶的性质、结构及其在速冻水饺中的应用。

Six derivatives of 4-phenyl-3-phenoloxymethyl-5-mercapto-1,2,4-triazlyole were synthesized from phenoloxyacetyl hydrazide by two-steps reaction under microwave irradiation, then reacted with 2-chloroacetic acid to give six novel derivatives of 2-(3-phenoxymethyl-4-phenyl-[1,2,4]triazole-5-thio)-acetic acid.

在微波辐射条件下，芳氧乙酰肼经两步反应制得4-苯基－3-芳氧甲基－1，2，4-三唑－5-硫酮衍生物，再与氯乙酸反应得到6种尚未见文献报道的2-（3-芳氧甲基－4-苯基－1，2，4-三唑－5-硫基）乙酸衍生物。

METHODS Polyaldehyde dextran-epirubicin was made by sodium periodate oxidation.Carboxy-methyldextran-epirubicin was made by chloroacetic acid carboxymethylation followed by conjugating in hydrazone bond.

采用高碘酸钠氧化法制备聚醛基葡聚糖-表柔比星偶合物，将葡聚糖羧甲基化后制备腙健连接的羧甲基葡聚糖-表柔比星偶合物。

This article through the belt hydroxyl aldehyde class material and the chloroacetic acid response, the synthesis intermediate, then with the neighbouring phenylene diamine responded again synthesized 6 kind of benziminazole class compound, including 4 kinds not to report.

本文通过带羟基的醛类物质和氯乙酸的反应，合成中间体，然后再与邻苯二胺反应合成了6种苯并咪唑类化合物，其中有4种还未被报道。

Carboxymethyl dimethyl sulfonium chloride as a novel aquatic feed attractant was synthesized with chloroacetic acid, methyl sulfide and in solvent free system.

运用无溶剂合成方法，利用较低成本的氯乙酸为原料与二甲硫醚反应，合成新型水产动物诱食剂——氯化羧甲基二甲基锍。

Esterification of terpineol with oxalic acid, chloroacetic acid and trichloroacetic acid by solid superacid MoO3/TiO2 was studied.

研究了MoO3/TiO2固体超强酸催化剂催化松节油与草酸，氯乙酸，三氯乙酸反应的规律。

The yield of borneol and isoborneol was 52.93%,and selectivity for borneol was 60.46%at the conditions of programmed temperatures,reaction time 315 min,saponification time 1h,mass part of catalyst 5%,and terpineol:chloroacetic acid 100∶25.

酯化反应采用程序升温，时间315 min，皂化时间1 h。催化剂用量为松节油质量的5%，松节油∶氯乙酸为100∶25时，龙脑得率为52.93%，正龙脑的选择性为60.46%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。