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  • Catalyst-Driven Scaffold Di...
    Liddon, John T. R.; James, Michael J.; Clarke, Aimee K.; O'Brien, Peter; Taylor, Richard J. K.; Unsworth, William P.

    Chemistry, June 20, 2016, Letnik: 22, Številka: 26
    Journal Article

    Medicinally relevant spirocyclic indolenines, carbazoles and quinolines can each be directly synthesised selectively from common indolyl ynone starting materials by catalyst variation. The high yielding, divergent reactions all proceed by an initial dearomatising spirocyclisation reaction to generate an intermediate vinyl–metal species, which then rearranges selectively by careful choice of catalyst and reaction conditions. Medicinally relevant spirocyclic indolenines, carbazoles and quinolines can each be directly synthesised selectively from common indolyl ynone starting materials by catalyst variation (see scheme). The high yielding, divergent reactions all proceed by an initial dearomatising spirocyclisation reaction to generate an intermediate vinyl–metal species, which then rearranges selectively by careful choice of catalyst and reaction conditions.