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- The target compound was synthesized from 1 bromo 3 chloro propane by amination and Grignard reaction with ethyl orthoformate. [方法 ]以 1-溴 - 3-氯丙烷为原料 ,胺化后 ,与原甲酸三乙酯进行格氏加成反应 ,得目标化合物。
- This paper discussed the technic of 1H-tetrazole-1-acetic acid with ethyl orthoformate glacial acetic acid,sodium azide as the material.We obtained the proper techic route. 本文主要探讨了使用原甲酸三乙酯、冰醋酸、叠氮化钠等原料生产1H-四氮唑-1-乙酸的工艺过程,精选出了适宜的工艺路线。
- ethyl orthoformate 原甲酸乙酯
- To introduce the ethyl group into(a compound). 使乙基化把乙基引入（一化合物）
- Using ethyl cyanoacetate, triethyl orthoformate and methylhydrazine as main raw materials, the herbicide pyrazosulfuron was prepared through the reactions of substitution, amination, cylclization, diazotization and chlorosulfonation. 摘要以氰乙酸乙酯、原甲酸三乙酯和甲肼等为主要原料，通过取代、胺化、环化、重氮化和氯磺化等反应制得了除草剂吡嘧磺隆原料药。
- Ethyl acetate(71. 41b)was added to the slurry in the vessel. 把醋酸乙酯71.;4磅加到容器中的浆液内。
- Ethyl lactate was synthesized with sodium bisulfate. 采用硫酸氢钠为催化剂合成乳酸乙酯。
- An alcoholic liquor distilled from grain, such as corn, rye, or barley, and containing approximately40 to50 percent ethyl alcohol by volume. 威士忌酒一种从谷类如玉米、黑麦或大麦等提炼出来含酒精液体，按容量包含约40％至50％的乙醇
- Ethyl 3-aminobenzoate, methanesulfonic acid salt, 98... 3-氨基苯甲酸乙酯甲烷磺酸盐；
- No ethyl acetate and cyclohexane were determined in specimen. 被测样品中未检测出环己烷,检出乙酸乙酯。
- Remove the ethyl alcohol use calcium carbonate impurity method? 用碳酸钙除去乙醇中的乙酸杂质的方法？？？
- A liquid containing iodine dissolved in ethyl alcohol, used as an antiseptic for wounds. 碘酊; 碘酒溶于酒精的碘的一种液体，用作防止伤口感染的药剂
- Thus the term dialkyl carbonate includes, for example, methyl ethyl carbonate. 因此术语二烷基碳酸酯包括，例如甲基乙基碳酸酯。
- In Brazil, about 40% of all motor fuel is ethanol, also known as ethyl alcohol. 在巴西,所有机动燃料的大约40%25是乙醇,也就是酒精。
- Any of several esters, other than the ethyl ester, of carbamic acid. 聚氨脂一种氨基甲酸中除乙基酯以外的酯
- Aim\ Enanthal diethyl acetal is prepared with heptaldehyde and triethyl orthoformate as raw materials. 目的研究以庚醛和原甲酸三乙酯为原料制备庚醛二乙缩醛的工艺条件。
- In Brazil, about40% of all motor fuel is ethanol, also known as ethyl alcohol. 在巴西40%25机油是酒精，也是熟知的乙醛酒精。
- The new way of synthesis triethyl orthoformate in one step was advanced using ch loroform，solid natrium hyelroxide and anhydrous ethanol. 提出采用氯仿、固体氢氧化钠和无水乙醇一步合成原甲酸三乙酯的新方法。
- Label Statement: Contains flavor, propylene glycol and ethyl alcohol. 标签声明:本品含有香精,丙二醇和乙醇。
- The dehydrating agent and the dehydrating condition on removal of trace water in the synthetic solution of triethyl orthoformate were investigated. 研究了原甲酸三乙酯一步法合成反应中脱除微量水分的脱水剂和脱水条件,通过正交实验确定了脱水的最优化工艺条件。
