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1.The immediate products of this reaction are alkali - metal derivatives of dialkyl phenylmalonates.

此反應(yīng)得到的產(chǎn)物為二烷基苯基丙二酸酯的堿金屬鹽衍生物.

2.The preparation of dimethyl malonate was studied acid, methanol and sodium cyanide by cyanidation and esterification.

對(duì)氰化酯化法合成丙二酸二甲酯的工藝進(jìn)行了改進(jìn).

3.The viscosity properties of food thickening agent propylene glycol alginate ( PGA ) are studied.

研究了食品增稠劑藻酸丙二醇酯( PGA ) 的粘度特性.

4.A spray drying process of preparation of diisporopyl malonate with super acid as catalyst was studied.

介紹了一種以噴霧干燥脫水,以超強(qiáng)酸催化酯化合成丙二酸二異丙酯的方法.

5.Through nitrosation, hydrogenate reducion, and acylate three steps, the yield surpass 80 % for the diethyl malonate.

收率相對(duì)于丙二酸二乙酯達(dá)到了80%以上.

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