1.Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.
1.以间硝基苯甲醛,乙酰乙酸乙,氨化试剂为原料。
2.Heptanone with purity being 98.5% was synthesized by ethyl acetoacetate.The yield is 58.9%,and its application in the related fields were discussed.
2.用乙酰乙酸乙法成了2-庚酮,总得率为58.9%,纯为98.5%.介绍了2-庚酮在相关的应用.
3.Keto-enol tautomerizing of ethyl acetoacetate was studied by UV.It was conformed that the content of enol ethyl acetoacetate decreased with the increasing polarity of solvents.
3.本文以紫外光谱为手段研究乙酰乙酸乙的酮-烯醇式互变异构现象;所得结果证实其烯醇式含量随溶剂极性的增加而减少。
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1.One of those compounds is acetoacetate, which can break down further into acetone.
种化合物是乙酰乙酯，它可以进步分解成丙酮。
2.One of those compounds is acetoacetate, which can break down further into -- you guessed it -- acetone.
种化合物是乙酰乙，它可以进步分解成——你猜对了——丙酮。机翻
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划词翻译
详细解释
,氨化试剂为原料。
列 
成了2-庚酮,总得率为58.9%,纯
为98.5%.介绍了2-庚酮在相关
的应用.
种化合物是
酯
种化合物是
