Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.
以基苯甲醛,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-庚酮,总得率为58.9%,纯为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.
本文以紫外光谱为手段研究乙酰乙酸乙酯的酮-互变异构现象;所得结果证实其含量随溶剂极性的增加而减少。
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One of those compounds is acetoacetate, which can break down further into acetone.
种化合物是乙酰乙酯，它可以进步分酮。
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——你猜对了——酮。
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详细解释
基苯甲醛,乙酰乙酸乙酯,氨化试剂为原料。
为98.5%.介绍了2-庚酮在相关领域中的应用.
互变异构现象;所得结果证实其
种化合物是乙酰乙
酯，它可以进
酮。
种化合物是乙酰乙
，它可以进
——你猜对了——
酮。
