The Palladium‐Catalyzed Preparation of Condensed Tetracyclic Heterocycles and Their Application to the Synthesis of rac‐Mangochinine (I).

Abstract

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Electron Donor–Acceptor Complex Induced Fused Indoles with Hypervalent Iodine(III) Reagents

“…Other synthesis strategies of polycyclic indoles through cascade reactions are always effective methods . The motif is generally synthesized via the intramolecular coupling of aryl chlorides or bromides with allylamine or alkyne using multistep synthesized substrates and complex catalytic systems (Scheme b, c) . However, the reaction systems are still rather limited due to complex initiation substrates, multiple transition metals, noble ligands, and base or acid additives.…”

Synthesis of Indolo[2,1-a][2]benzazepine and Indolo[2,1-a][2]-benzazocine

“…Earlier research had addressed the tethering via alkylation processes and cyclisation via aromatic cross-coupling or via Buchwald-Hartwig coupling to construct the indole [2][3][4][5][6][7] (Scheme 1). However, all of these methods leave an unfunctionalised alkyl chain as tethering group.…”