Angewandte Chemie - International Edition p. 2488 - 2490 (2000)
Update date:2022-08-04
Topics:
Rodriguez, Alain Louis
Koradin, Christopher
Dohle, Wolfgang
Knochel, Paul
A mild route to indoles by cyclization of 2-(1-alkynyl)anilines is offered by the use of simple bases such as KOtBu, KH, or CsOtBu and N-methylpyrrolidinone (NMP) at room temperature. The reaction has a broad scope and allows the preparation of various functionalized indoles as well as new aza-or diazaindoles in excellent yields [see, for example, Eq. (1)].
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