ethyl chloroformate

Pressurized capillary electrochromatographic(pCEC) method was developed to analyze metabolites in normal and obesity rat urines with ethyl chloroformate derivatization.利用氯甲酸乙酯作为衍生化试剂,建立了测定尿样中内源性代谢物的加压毛细管电色谱方法。xwK汉语字典

7% using ethyl chlorocarbonate activation and(E)3,4,5-trimethoxycinnamylic acid as starting materials at-10 ℃ was investigated.以(E)3,4,5-三甲氧基肉桂酸为原料,在-10℃经活化试剂氯甲酸乙酯活化后与1-[(1-四氢吡咯羰基)甲基]哌嗪(Ⅲ)"一锅煮"法合成得到桂哌齐特游离碱(Ⅳ),再与马来酸成盐后制得马来酸桂哌齐特(Ⅰ),以四氢吡咯计总收率为50。xwK汉语字典

With the yield of methyl monochloroacetate as evaluating standard,the synthesized condition of methyl chloroacetate was optimized through orthogonal experiment.以氯乙酸母液和甲醇为基本原料,固载磷钨酸为催化剂,通过连续酯化的方法制备了氯乙酸甲酯;以氯乙酸甲酯的质量收率为基准,采用三因素三水平正交实验的方法对酯合成的条件进行了优化。xwK汉语字典

The yield of methyl chloroacetate amounts to 72.本文采用氯乙酸和甲醇酯化反应合成氯乙酸甲酯,讨论了原料摩尔比、反应温度、反应时间和催化剂用量对产率、产品质量的影响。xwK汉语字典

Then,using BF4 as solvent,3-(methyloxycarbonyl) tegafur was synthesized from tegafur and methyl chloroacetate under microwave irradiation at 250 W for 18 min,and the yield was up to 82.以氯乙酸和甲醇为原料,在无溶剂和250 W微波辐射10 min条件下,合成了氯乙酸甲酯,产率91。xwK汉语字典

Methyl 2,6-dichlorophenoxyacetate is prepared with 2,6-dichlorophenol,sodium methoxide and methyl chloroacetate as raw materials.以2,6-二氯苯酚、甲醇钠甲醇溶液和氯乙酸甲酯为原料,合成了2,6-二氯苯氧乙酸甲酯。xwK汉语字典

Synthesis of β-chloroethyl chlorocarbonate;氯甲酸-β-氯乙酯的合成xwK汉语字典

Study on the Preparation of Methyl-chloroacetate by Selective Hydrodechlorination of Mixed Esters of Mother Liquor of Chloroacetic Acid;氯乙酸母液混酯选择性加氢脱氯制备氯乙酸甲酯的研究xwK汉语字典

Sytnthesis of diethyl methyl Malonate with 2-chloropr opionic acid2-氯丙酸法制备甲基丙二酸二乙酯xwK汉语字典

1,2-dibromo-2,2-dichloroethyl dimethyl phosphate１,２－二溴－２,２－二氯乙基二甲基磷酸酯xwK汉语字典

2,2-dichlorovinyldimethyl phosphate２,２－二氯乙烯基二甲基磷酸酯xwK汉语字典

Vinyl chloride-methyl acrylate VCMA氯乙烯/丙烯酸甲酯共聚物xwK汉语字典

polyvinyl chloracetate聚氯乙烯-乙酸乙烯酯xwK汉语字典

Study on Polymerization of Styrene and Methyl Methacrylate by Copper (Ⅰ) Chloride/ethylenediamine/benzyl Chloride;氯化亚铜/乙二胺/苄氯引发苯乙烯和甲基丙烯酸甲酯聚合研究xwK汉语字典

Study on the Synthesis and Tribological Performances of Methoxyethane Dialkyldithiocarbamate as Lubricant Additive氯乙基甲醚氨基甲酸酯的合成及性能研究xwK汉语字典

Microwave radiation for synthesis of isopropyl chloroacetate with PTSA/C as the catalyst微波辐射对甲苯磺酸/C催化合成氯乙酸异丙酯xwK汉语字典

Studies on Chloromethylation of Ethyl 2-Ethoxy-5-Acetylamino Benzoate2-乙氧基-5-乙酰氨基苯甲酸乙酯的氯甲基化反应xwK汉语字典

methylcellosolve acetate甲基溶纤剂乙酸酯，甲氧基乙醇乙酸酯xwK汉语字典

vinyl chloride-vinyl acetate resin氯乙烯醋酸乙烯酯树脂xwK汉语字典

Particle Features of Poly(vinylidene chloride-comethyl acrylate) Suspension Resins偏氯乙烯-丙烯酸甲酯悬浮共聚树脂颗粒特性xwK汉语字典

methyl-malonic ester甲基丙二酸酯[二乙酯]xwK汉语字典

ethylene glycol monoemethyl ether acetate乙二醇独甲醚乙酸酯xwK汉语字典

methoxyethyl acetyl ricinoleate乙酰蓖麻酸甲氧基乙酯xwK汉语字典

methyl styryl carbinyl acetate乙酸甲基苯乙烯基原酯xwK汉语字典

trimethyl silyl acetate三甲基甲硅烷乙酸酯xwK汉语字典