1) Isopropyl acetoacetate
乙酰乙酸异丙酯
2) ethyl levulinate
乙酰丙酸乙酯
1.
A simple TLC method for monitoring the synthetic process of 3-bromo-ethyl levulinate is reported,and the reaction condition is optimized.
用薄层色谱法监测溴素溴化乙酰丙酸乙酯生成3-溴乙酰丙酸乙酯的反应过程,优化了反应条件,方法简单,快速,准确。
3) ethyl 3-oxopentanoate
丙酰乙酸乙酯
1.
Methods: Starting from ethyl 3-oxopentanoate,JTT-20993 was obtained via a series of chemical reactions including bromina tion,cyclization,alcoholization,methanesulfonization and condensation.
方法:以丙酰乙酸乙酯为起始原料,先溴化得到4-溴丙酰乙酸乙酯,然后与苯甲酰胺回流环合得到2-(5-甲基-2-苯基-4-(？)唑基)-乙酸乙酯,再还原成醇,并甲磺酰化,得到中间体2-(5-甲基-2-苯基-4-(?)唑基)-乙醇甲磺酸酯,最后与4-羟基苄基丙二酸二甲酯缩合,得到目标物JTT-20993。
2.
It was started from ethyl 3-oxopentanoate,and was brominated,and then ethyl 4-bromo-3-oxopentanoate was produced,which cyclized with benzamide at reflux in toluene and afforded to ethyl 2-(5-methyl-2-phenyl-4-oxazolyl)acetate,then was reduced with lithium aluminum hydride and 2-(5-methyl-2-phenyl-4-oxazolyl)ethanol was gained.
以丙酰乙酸乙酯为起始原料 ,先溴化得到 4 溴丙酰乙酸乙酯 ,再在甲苯中与苯甲酰胺回流环合得到 2 (5 甲基 2 苯基 4 唑 ) 乙酸乙酯 ,最后经氢化铝锂还原 ,得到目标杂环中间体 2 (5 甲基 2 苯基 4 唑 ) 乙醇。
4) Ethyl 2,4-dioxovalerate
乙酰丙酮酸乙酯
5) allylacetoacetate
乙酰乙酸烯丙酯
6) Ethyl acetylpropanoate
乙酰基丙酸乙酯
补充资料：乙酰乙酸异丙酯
分子式：C7H12O3
分子量：144.17
CAS号：542-08-5
性质：密度0.989。
分子量：144.17
CAS号：542-08-5
性质：密度0.989。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条