Proton-induced Diels-Alder reactions of 2-Vinylindoles
作者:Siegfried Blechert、Thomas Wirth
DOI:10.1016/s0040-4039(00)61001-8
日期:1992.10
New induction methods for the Diels-Alder reaction of acceptor-substituted 2-vinylindoles with carbodienophiles are described. Variation of the diene as well as the dienophile allows regio- and stereocontrolled construction of different carbazole derivatives.
Domino Reactions - New Concepts in the Synthesis of Indole Alkaloids and Other Polycyclic Indole Derivatives
2-Vinylindoles, which are easily accessible via a domino process, are useful synthons for a variety of applications. Subsequent Diels-Alder reactions yield tetrahydrocarbazoles which can be dehydrated to carbazoles such as derivatives of olivacine or elipticine. Cycloadditions with enamine intermediates led to the synthesis of epidasycarpidone.