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- The Knoevenagel condensation of armatic aldehydes and malononitrile or cyanacetic ester is carried out by DMF as solvent without catalyst.The process gives high yields of products. 本文报道了无外加催化剂条件下以DMF为溶剂芳香醛与丙二腈或氰基乙酸乙醇进行克脑文盖尔缩合反应,此法产率较高。
- The sensitization of raw material and intermediate of pyrazosulfuron-ethyl was studied using guinea pig.The result indicated that ethoxy methylene cyanacetic ester is sensitive agent. 本文对吡嘧黄隆生产中的原料和中间体氰乙酸乙酯，乙氧基甲叉氰乙酸乙酯和吡唑胺进行了致敏性试验研究。
- sodium cyanacetic ester 钠代氰基乙酯酸
- ethyl cyanacetic ester 2-氰基丁酸酯
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- A natural or synthetic ester of glycerol and fatty acids. 甘油酯以甘油和脂肪酸天然存在的或合成的酯
- A salt or an ester of lactic acid. 乳酸盐或乳酸酯
- A salt or an ester of titanic acid. 钛酸盐钛酸的盐或酯
- A salt or ester of hypochlorous acid. 次碳酸盐一种次碳酸的盐或酯
- Ester asked for time to think all this over . 埃斯特拉要求给她时间好好想一想。
- Ester asked for time to think all this over. 埃斯特拉要求给她时间好好想一想。
- A salt or an ester of malic acid. 一苹果酸的盐或酯
- A salt or an ester of oxalic acid. 草酸盐草酸的盐或酯
- A salt or ester of arsenic acid. 砷酸盐，砷酸酯
- A salt or an ester of pantothenic acid. 泛酸盐，泛酸脂泛酸的盐或脂
- A salt or an ester of propionic acid. 丙酸盐丙酸的一种盐或脂
- A salt or ester of aspartic acid. 天门冬胺酸盐，天门冬胺酸酯一种天门冬胺酸盐或脂
- A salt or ester of barbituric acid. 巴比妥酸盐，巴比妥酸酯
- An ester or a salt of perchloric acid. 高氯酸盐
- The acid ewolises nearly as well as the ester. 此酸的烯醇化几乎象酯一样良好。
