The method of synthesizing N, N′-diphenylmalonamide employing aniline and malonic ester and pyridine as extractant was investigated.
以对苯胺、丙二酸二乙酯为原料、吡啶为溶剂合成N，N'-二苯基丙二酰胺的方法进行了研究。
The reaction of malonic ester with aro-matics can also be carried out by above reagents.
丙二酸二乙酯和芳烃在三乙酸锰和磷酸作用下也能发生同样的反应。
Diethyl ethylmalonate; Ethyl ethylmalonate; Ethyl malonic ester;
乙基丙二酸二乙酯；
In the first part, chemical synthesis, including by acraldehyde, malonic ester, ami no lactone and others were discussed and synthesis by hydantoin was emphasized.
第一部分讨论了DL-蛋氨酸及其衍生物的化学合成，包括丙烯醛法、丙二酸酯法，氨基内酯法等，并着重介绍了海因法。
In the first part, chemical synthesis, including by acraldehyde, malonic ester, ami no lactone and others were discussed and synthesis by hydantoin was emphasized.
第一部分讨论了DL-蛋氨酸及其衍生物的化学合成，包括丙烯醛法、丙二酸酯法，氨基内酯法等，并着重介绍了海因法。
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