Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.
以间甲醛,乙酰乙酸乙酯,氨化试剂为原料。
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,总得率为58.9%,纯为98.5%.介绍了2-庚在相关领域中应用.
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.
本文以紫外光谱为手段研究乙酰乙酸乙酯-醇式互变异构现象;所得结果证实其醇式含量随溶剂极性增加而减少。
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One of those compounds is acetoacetate, which can break down further into acetone.
其中一种化合酰酯，它一步分解成丙酮。
One of those compounds is acetoacetate, which can break down further into -- you guessed it -- acetone.
其中一种化合酰，它一步分解成——你猜对了——丙酮。
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划词翻译
详细解释
甲醛,乙酰乙酸乙酯,氨化试剂为原料。
,总得率为58.9%,纯
为98.5%.介绍了2-庚
应用.
醇式互变异构现象;所得结果证实其
酰
酯，它
一步分解成丙酮。
酰
，它
一步分解成——你猜对了——丙酮。
