Substituted Benzo[<i>a</i>]carbazoles and Indoleacetic Acids from Arylglyoxals and Enamines through Domino Condensation, Thermal Cyclization, and Aromatization
作者:Subhendu Maity、Sudipta Pathak、Animesh Pramanik
DOI:10.1002/ejoc.201402085
日期:2014.7
cyclohexanone-fused 2-(3-pyrrolyl)-2-cyanoacetamides, the condensation products of enamines, arylglyoxals, and malononitrile, are converted into highly substituted benzo[a]carbazoles through a one-step thermal cyclization and palladium-catalyzed aromatization. The biologically important indoleacetic acid derivatives are also obtained in good yields from the hydrolysis and aromatization of the same cyanoacetamides.
已经开发了一种两步法,其中环己酮稠合的 2-(3-吡咯基)-2-氰基乙酰胺,烯胺、芳基乙二醛和丙二腈的缩合产物,通过一个-分步热环化和钯催化芳构化。生物学上重要的吲哚乙酸衍生物也可以从相同的氰基乙酰胺的水解和芳构化中以良好的产率获得。