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.
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2 . The preparation of dimethyl malonate was studied acid, methanol and sodium cyanide by cyanidation and esterification.
對氰化酯化法合成丙二酸二甲酯的工藝進(jìn)行了改進(jìn).
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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.
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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.
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5 . Through nitrosation, hydrogenate reducion, and acylate three steps, the yield surpass 80 % for the diethyl malonate.
收率相對于丙二酸二乙酯達(dá)到了80%以上.
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1 . malonic ester
malonic acid 丙二酸malonic ester 丙二酸酯malononitrile 丙二腈
