An unexpected reaction of diethyl phosphite with electron-deficient dialkyl dicyanofumarates
作者:Grzegorz Mlostoń、Małgorzata Celeda、Heinz Heimgartner
DOI:10.1080/10426507.2015.1085045
日期:2016.2.1
ABSTRACT Abstract Diethyl phosphite reacts with both dimethyl dicyanofumarate and dicyanomaleate in boiling 1,2-dichloroethane to yield, after chromatographic workup, a 1:1-mixture of the corresponding meso- and dl-dicyanosuccinates. The analogous transformation was observed in the cases of diethyl and diisopropyl dicyanofumarates. A reaction pathway via initial formation of a P–C bond followed by its
图形摘要 摘要 亚磷酸二乙酯与二氰基富马酸二甲酯和二氰基苹果酸在沸腾的 1,2-二氯乙烷中反应,经色谱处理后,得到相应的内消旋和 dl-二氰基琥珀酸酯的 1:1 混合物。在二氰基富马酸二乙酯和二异丙基酯的情况下观察到类似的转化。提出了通过初始形成 P-C 键然后水解裂解的反应途径。