YAMADA, YOICHI;YASUDA, HEINOSUKE, SYNTHESIS (BRD),(1990) N, C. 768-770
作者:YAMADA, YOICHI、YASUDA, HEINOSUKE
DOI:——
日期:——
A Convenient Synthesis of Dialkyl (<i>E</i>)-2,3-Dicyanobutendioates
作者:Yoichi Yamada、Heinosuke Yasuda
DOI:10.1055/s-1990-27009
日期:——
Dialkyl (E)-2,3-dicyanobutendioates 4, potentially useful intermediates for the synthesis of a wide variety of heterocyclic compounds, are conveniently prepared by the reaction of alkyl bromocyanoacetates 2 with potassium thiocyanate in acetonitrile followed by treatment with water. The starting alkyl bromocyanoacetates are prepared by the photochemical reaction of the appropriate alkyl cyanoacetate with bromine in carbon tetrachloride.