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- The propanedinitrile is synthesised from ethyl cyanoacetate by amination and elimination reaction. 由氰乙酸乙酯与氨反应生成氰乙酰胺,再经过消除反应制得丙二腈。
- By using ethyl cyanoacetate and n-octanol as raw materials, n-octyl cyanoacetate was synthesized through interesterification. 以氰乙酸乙酯和正辛醇为原料,采用酯交换法合成了氰乙酸正辛酯。
- By using ethyl cyanoacetate and nbutanol as raw materials, butyl cynoacetate was synthesized through interesterification. 以氰乙酸乙酯与正丁醇为原料,采用酯交换法合成氰乙酸正丁酯。
- By using ethyl cyanoacetate and iso-otanol as raw materials, iso-octyl cyanoacetate was synthesised through interesterification by tetrabutyl titanate as catalyst. 以氰乙酸乙酯和异辛醇为原料,采用钛酸四丁酯为催化剂,用酯交换法合成氰乙酸异辛酯。
- 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。
- The synthesis of 6-hydroxytryptamine by resorcin as starting material through carboxylate, condensation of ethyl cyanoacetate, cyclized, reduced and oxidocyclized has been accomplished. 以间苯二酚为合成标题物的起始原料,经羰基化,缩合,氰化,还原和氧化环合而合成6-羟基色胺。
- Ethyl dicyanopropionate was synthesized by one-step reaction with sodium cyanide, paraformaldehyde and ethyl cyanoacetate in solvent. The yield was 80.2%, and the purity was 90.8%. 由氰化钠、多聚甲醛和氰乙酸乙酯在溶剂中反应;一步合成二氰基丙酸乙酯;收率(以氰乙酸乙酯计)达80.;2%25;含量90
- Keywords L-Carnosine;L-Histidine;Ethyl cyanoacetate;synthesis; 肌肽;L-组氨酸;氰乙酸乙酯;合成;
- Keywords iso-octyl cyanoacetate;tetrabutyl titanate;catalytic syntyesis;ethyl cyanoacetate;interesterification; 氰乙酸异辛酯;钛酸四丁酯;催化合成;氰乙酸乙酯;酯交换法;
- Keywords ethyl cyanoacetate;\ ethyl acetoacetate;\ ethyl amine;\ N ethyl 3 cyano 4 methyl 6 hydroxypyridin 2 one;\ derivatives; 氰乙酸乙酯;乙酰乙酸乙酯;乙胺;N-乙基-3-氰基-4-甲基-6-羟基吡啶-2-酮;衍生物;
- ethyl cyanoacetate 氰乙酸乙酯
- To introduce the ethyl group into(a compound). 使乙基化把乙基引入(一化合物)
- 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。