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.
紫外光谱为手段研究乙酰乙酸乙酯的酮-烯醇式互变异
现象;所得结果证实其烯醇式含量随溶剂极性的增加而
。
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.
紫外光谱为手段研究乙酰乙酸乙酯的酮-烯醇式互变异
现象;所得结果证实其烯醇式含量随溶剂极性的增加而
。
Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.
间硝基苯甲醛,乙酰乙酸乙酯,氨化试剂为原料。
声明:上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表
软件的观点;若发现问题,欢迎向我们指正。