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- geranyl acetoacetate 乙酰乙酸香叶酯
- Ginkgo leaf shape has also been Geranyl on both sides of the sub-point of impact. 银杏的叶形,还受到叶基两边分枚角度的影响。
- Nefedipine was synthesized with m-Nitrobenzaldehyde, ethyl acetoacetate, animonium acetate. 摘要以间硝基苯甲醛,乙酰乙酸乙酯,氨化试剂为原料。
- The conclusion was that geranyl glycoside could be used as a flavor material in cigarette flavoring. 结论:香叶醇糖苷可以作为香原料应用到卷烟中。
- A1_20_3 sol is prepared by using Al(O-sec-Bu)3 chelated with ethyl acetoacetate(EAcAc) as precursor. 本文以乙酰醋酸乙酯(EAcAc)螯合的异丁醇铝为前驱物制备出了A1_20_3溶胶。
- Other major compositions included benzaldehyde, 4-allylanisole, geranyl acetate, and cinnamyl acetate. 其他平均百分比高于1%25之成分包括苯甲醛,4-丙烯苯甲醚,乙酸香叶酯及乙酸桂皮酯等。
- Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate. 以间硝基苯甲醛,乙酰乙酸乙酯,氨化试剂为原料。
- METHODS Bropirimine was synthesized by 3 steps reaction of acylation, cyclization and bromination with ethyl acetoacetate as staring material. 方法以乙酰乙酸乙酯为起始原料,经酰化、环合、溴化3步反应合成溴匹立明。
- Farnesol can be synthesized by different chemical means from different materials, such as, nerolidol, geranyl derivatives or other (compounds). 由橙花叔醇、香叶基衍生物和其它多种原料经不同的化学反应手段,可以合成金合欢醇。
- A new type of apple ester-B is synthesized by condensation reaction of ethyl acetoacetate and 1,2- propanediol,Using Fe 3+ -UR as catatlyst. 以Fe3 + - UR 为催化剂,催化乙酰乙酸乙酯和1 ,2 - 丙二醇缩合反应合成了新型香料苹果酯- B。
- In order to develop new cigarette flavors,the smoke analysis and sensory evaluation of cigarettes added with geranyl glycoside were conducted. 为开发新型烟用香料,将香叶醇糖苷添加到卷烟中,而后进行烟气分析和评吸。
- Fructone was synthesized from ethyl acetoacetate and glycol using activated carbon supported phosphotungstic acid as catalyst. 以活性炭负载磷钨酸为催化剂合成了苹果酯,确定了反应的最优条件。
- With 1,4-bezenoquinone and ethyl acetoacetate as the starting materials, it had been prepared in a novel six-step procedure in overall yield of 34.6%. 以1,4-苯醌和乙酰乙酸乙酯为起始原料,经新的六步反应过程,合成阿比朵尔,总收率为34.;6%25。
- The strongly acidic cation exchange resin catalyzed synthesis of fructone-B by the reaction of ethyl acetoacetate and 1,2-propanediol was studied. 采用强酸性阳离子交换树脂为催化剂,以乙酰乙酸乙酯、1,2-丙二醇为原料合成苹果酯-B。
- Objective To investigate the chemical constituents of the extracts of Ledum palustre L.Var.Angustum E.Busch from acetoacetate. 摘要目的对细叶杜香乙酸乙酷部位的化学成分进行研究。
- Health is careful observation of a group of tree leaves, we find that changes in the shape of ginkgo Geranyl larger, from the arc, triangle to the Arrow. 仔细观察一批实生树的叶片,可以发现,银杏叶基形状的变化较大,从弧形、三角形到箭形。
- Fructone-A and Fructone-B was synthesized from ethyl acetoacetate and ethanediol or 1,2-propanediol using ammonium ceric sulfate as catalyst. 以硫酸高铈铵为催化剂,通过乙酰乙酸乙酯分别与乙二醇和1,2-丙二醇反应合成了苹果酯-A和苹果酯-B,研究了催化剂等有关因素对产品收率的影响。
- Geranyl generated Cong, inverted Luanzhuang lanceolate, gradually narrow the base of a stalk, Bu Zhengqi edge of a blunt teeth, wrinkled leaves, slightly below purple. 叶基生成丛,倒卵状披针形,基部渐狭成柄,边缘有不整齐钝齿,叶面皱缩,下面略带紫色。
- The resulted IR Spectrum makes it possible to determine the reaction mechanism of ethyl acetoacetate with tetra butyl titanate. 得到的红外光谱使其决定钛酸四丁酯与乙酰乙酸乙酯的反应历程。
- N,N-Dihydroxyethyl-acetoacetamide,the raw material of the borate ester bonding agent,was synthesized from methyl acetoacetate and diethanolamine. 二乙醇胺与乙酰乙酸甲酯反应合成了硼酸酯键合剂原料N,N-二羟乙基乙酰乙酰胺。
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