盐酸盐
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Keywords amino acid methyl ester hydrochloride;amino acids;methanol solution of thionyl chloride;thionyl chloride;synthesis
氨基酸甲酯盐酸盐;氨基酸;二氯亚砜-甲醇溶液;二氯亚砜;合成
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The influentical factors on the synthesis of L-serine methyl ester hydrochloride with thionyl chloride were studied and optimized.
对亚硫酰氯法制备L-丝氨酸甲酯盐酸盐的影响因素进行试验及优化,较佳工艺条件下酯化收率可达85.0%以上,产品含量≥98.0%。
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Results show that, by using thionyl chloride and N,N-dimethyl formamide as chlorinating reagent and dichloromethane as solvent and taking -15℃ as reaction temperature, Z-iomer crystals with pale white color and stable to temperature can be obtained with an overall yield of 70%.
以2-(2-氨基噻唑-4-基)-2-甲氧亚氨基乙酸为原料,经盐酸化、氯代等反应合成了Z-2-(2-氨基噻唑-4-基)-2-甲氧亚氨基乙酰氯盐酸盐;氯代时以用亚硫酰氯和N,N-二甲基甲酰胺的混合物代替五氯化磷作氯化剂,并考察了温度和溶剂对氯代产物中Z-异构体和E-异构体收率的影响。
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It is very improtant to cut down the production costs of AKD by means of recycle triethylamine of from by-product triethylaminehydrochloride.
摘 要:从副产物三乙胺盐酸盐中回收三乙胺对降低AKD生产成本至关重要。
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With 1-methylte-trazole-5-thiol and 7-ACA as the material and acetonitrile-boron trifluoride complex as Catalysts, 7-TMCAHCl was preparated and the yield could reach 91.80%.
以1-甲基-5-巯基四氮唑和7-ACA为原料,三氟化硼乙腈配合物为催化剂合成了7-TMCA盐酸盐,反应收率可达91.80%。
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Chloro-2-hydroxypropyl trimethylammonium chloride was synthesized by using trimethylamine hydrochloride and epichlorohydrin as the raw materials and anhydrous as solvent.
以无水乙醇作溶剂、三甲胺盐酸盐和环氧氯丙烷为原料合成了3-氯-2-羟丙基三甲基氯化铵,探索出最佳合成条件为:n∶n为0.95∶1,反应温度为40~50℃,反应时间为30m in,所得产品质量分数大于98%,收率达90%。
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Yoo and Li communicated the successful oxidative amidation of aldehydes with amine hydrochloride salts and Cu/Ag catalysts J.
柳、李沟通成功的醛胺氧化酰胺盐酸盐、铜/银催化剂 J时。
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A new nonaqueous titration method for the determination of aminocaproic acid and aminocaproic acid hydrochloride was established, for technology-controlling of nylon 6 waste recycling by HCl de-polymerization.
本文针对盐酸酸解尼龙-6废弃物回收6-氨基己酸单体的工艺控制问题,首次建立了非水滴定法测定中间体6-氨基己酸盐酸盐及终产品6-氨基己酸含量的分析方法。
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Nonaqueous titration;Aminocaproic acid;Hydrochloride;Hyperehloric acid-acetic acid;Potentiometric titration
非水滴定;6-氨基己酸;6-氨基己酸盐酸盐;冰乙酸-高氯酸;电位滴定
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Amino-6-methoxy Benzothiazole 99%、2-Amino Benzothiazole 99%、Veratraldehyde 99%、Veratric Acid 99%、1,2- Dimethoxy Benzene 99%、6-Nitroveratric Acid 97%、2,5-Dichlorobenzoic Acid 99%、4-Chloro-3-Nitrobenzoic Acid 99%、 3-Nitrobenzole Acid 98%、p-Methoxybenzoie Acid 99%、Anisole 99.5%、p-Methoxyacetophenonc 99%、(2'-Chloroethyl) Benzene 99%、(2'-Bromoethyl) Benzene 99%、N,N-Diethyi-m-Toiuamide 99%、Aminoacetonitrile Hydrochloride 98%、 Alkyl Diphenyl Phosphate Estrel 98%、5-Chloro-2-benzothiazolone 99%、6-bromo-2-naphthol 98%、6-Nitro-Veretric Acid Estrel 97%、4-chloro phenoxyaeetic 99
2-氨基-6-甲氧基苯骈噻唑、2-氨基苯骈噻唑、藜芦醛、藜芦酸、藜芦醚、6-硝基藜芦酸、2,5-二氯苯甲酸、3-硝基-4-氯苯甲酸、3-硝基苯甲酸、对甲氧基苯甲酸、苯甲醚、对甲氧基苯乙酮、β-氯代苯乙烷、β-溴代苯乙烷、N,N-二乙基间甲苯甲酰胺、氨基乙腈盐酸盐、磷酸二苯月桂酯、5-氯-2-苯骈噻唑酮、6-溴-2-萘酚、6-硝基藜芦酸甲酯、4-氯苯氧乙酸
- 推荐网络例句
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。