Abstract
We report herein the synthesis of N-substituted indoles resulting from the ring-closing metathesis of indole precursors bearing N-terminal alkenes. The aqueous metathesis of the indole precursors gave good yields of N-substituted indoles (up to 72%) with commercial metathesis catalysts and with artificial metalloenzymes based on the biotin-streptavidin technology. Strikingly, the yield of the N-acetylindole increases in presence of a second metathesis substrate.
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Acknowledgement
T.R.W. thanks the University of Basel, the NCCR Molecular Systems engineering, the SNF (G rant 200020_182046) and the ERC (the DrEAM, advanced grant 694424) for generous funding.
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Sabatino, V., Staub, D. & Ward, T.R. Synthesis of N-Substituted Indoles via Aqueous Ring-Closing Metathesis. Catal Lett 151, 1–7 (2021). https://doi.org/10.1007/s10562-020-03271-3
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DOI: https://doi.org/10.1007/s10562-020-03271-3