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- ethyl sodio benzyl malonate 钠代苄基丙二酸乙酯
- ethyl sodio acetoacetic ester 乙基钠代乙酰乙酸酯
- diethyl benzyl malonate [医] 苄基丙二酸二乙酯, 苯丁二酸二乙酯
- The major aromas were hexylic acid ethyl ester, benzyl ethanol, octylic acid and octylic acid ethyl ester. 主体风味成分是己酸乙酯、苯乙醇、辛酸和辛酸乙酯。
- Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied. 以 BTEAC(苄基三乙基氯化铵 )为相转移催化剂合成了异烟酸乙酯。
- To introduce the ethyl group into(a compound). 使乙基化把乙基引入(一化合物)
- Propafenone hydrochloride(1.HCl)was prepared from diethyl malonate and benzyl chloride,through condensation,cyclization,hydrolysis,ethe-rification,and amination in 20% overall yield. 由氯苄与丙二酸二乙酯经缩合、环合、水解、醚化、胺化合成盐酸普罗帕酮,总收率20%25。
- Keywords benzyl malonic acid;synthesis;catchability;galena;sphalerite;smithsonite; 苄基丙二酸;合成;捕收性能;方铅矿;闪锌矿;菱锌矿;
- Keywords benzyl malonic acid;hydroximic acid;calamine;hematite;cooperation mechanism; 苄基丙二酸;羟肟酸;菱锌矿;赤铁矿;协同作用机理;
- However, Malon detects Dalan’s trickery due to her clumsy slipup. 大兰破绽百出,被马郎识破。
- The coker gas oil was refined by benzyl alcohol extraction. 以苄醇为溶剂,用萃取方法提高了焦化柴油的质量。
- 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。
- Benzyl N,N diethyldithiocarbamate (BDC)was synthesized. 合成N ,N’ 二乙基二硫代氨基甲酸苄酯 (BDC)。
- 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???
- The 4-Nitrophenyl Benzyl Ether and 2,4-Dinitrophenyl Ethyl Ether have been synthesized by the reaction of 4-Nitrophenol with benzylchloride and 2,4-Dinitrophenol with ethylbromide in solvent DMSO. 以对-硝基酚与氯化苄、2,4-二硝基酚与乙基溴在二甲基亚砜溶剂中进行缩合反应,合成了对-硝基苯基苄基醚和2,4-二硝基苯基乙基醚。
- Various factors that affect the condensation are discussed.The results show that the yield of 4-Nitrophenyl Benzyl Ether is 84.9 %, and the yield of 2,4-Dinitrophenyl Ethyl Ether is 72.3 %. 考察了不同反应条件下的反应结果;结果表明;在最佳条件下对-硝基苯基苄基醚和2;4-二硝基苯基乙基醚的收率分别为84.;9%25和72