Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.
以间硝基苯甲醛,乙酰乙酸乙酯,氨原料。
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.
用乙酰乙酸乙酯法合成了2-庚酮,总得率58.9%,纯98.5%.介绍了2-庚酮在相关领域中的应用.
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.
本文以紫外光手段研究乙酰乙酸乙酯的酮-烯醇式互变异构现象;所得结果证实其烯醇式含量随溶极性的增加而减少。
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One of those compounds is acetoacetate, which can break down further into acetone.
一种化合物是乙酰乙酯，它可以进一步分解。
One of those compounds is acetoacetate, which can break down further into -- you guessed it -- acetone.
一种化合物是乙酰乙，它可以进一步分解——你猜对了——。
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划词翻译
详细解释
原料。
一种化合物是乙酰乙
酯，它可以进一步分解
。
一种化合物是乙酰乙
，它可以进一步分解
——你猜对了——
。
