• 丙二酸

    Diethyl ethylmalonate; Ethyl ethylmalonate; Ethyl malonic ester;

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  • 芦竹酰氨基丙二酸碱性条件下缩合,得缩合物。

    Under the alkali conditions, the gramine condension with diethyl acetamidomalonate to obtain the condensation compound.

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  • 二酸芳烃在三锰和作用下发生同样的反应

    The reaction of malonic ester with aro-matics can also be carried out by above reagents.

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  • 简述丙二酸生产合成技术详细介绍了有机合成中的广泛用途

    Sketch diethyl malonate production and synthetic technology of ester, introduce it's extensive use in the organic synthesis in detail.

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  • 对苯胺丙二酸为原料、吡啶溶剂合成N,N'-苯基丙二酰胺方法进行了研究

    The method of synthesizing N, N′-diphenylmalonamide employing aniline and malonic ester and pyridine as extractant was investigated.

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  • 我们合成方法中,-苯开始合成了-苯二酸的烯醇盐离子进行亲核取代

    First we synthesized the -phenylethyl chloride from -phenylethyl alcohol. Then it was substituted by enolate anion of diethyl malonate and converted to ester.

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  • 香成分龙脑水杨醛丙二酸、亚麻酸乙酯30个化合物,占芳香油总量76 95 %。

    The 30 main compounds are bornyl acetate , salicylic aldehyde, diethyl malonate, ethyl linolenate, etc, which amount to 76.95 % content of the oil.

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  • 根据缩合原理,研究并提出了“克兰逊”催化缩合法,通过特性触煤合成氧基甲叉基乙酯产品提高了产品质量回收率

    Through the peculiarity contact-coat, composes the ethoxy methylene propane dioic acid dio-ethylest which improves the quality and yield of the product.

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  • 实验以水杨醛、丙二为原料,为催化剂催化合成香豆素- 3 -羧酸乙酯,再皂化环合合成香豆素- 3 -羧

    Synthesis of coumarin-3-carboxylic acid through sodium ethoxide catalyzed synthesis of coumarin -3-carboxylic acid ethyl ester, followed by saponification, acidolysis cyclization was studied.

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  • 实验以水杨醛、丙二为原料,为催化剂催化合成香豆素- 3 -羧酸乙酯,再皂化环合合成香豆素- 3 -羧

    Synthesis of coumarin-3-carboxylic acid through sodium ethoxide catalyzed synthesis of coumarin -3-carboxylic acid ethyl ester, followed by saponification, acidolysis cyclization was studied.

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