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Synthetic methodology

Ring expansion and chain extension of alkyl amines

Amines are highly valued molecules, used to understand biological processes and in the discovery of new medicines. However, medium-sized cyclic and macrocyclic amines are extremely challenging to synthesize and are therefore underutilized. Now, up to 15-membered cyclic amines can be formed directly from smaller, more accessible rings via an organoborane-catalysed two-carbon-unit C–C bond insertion.

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Fig. 1: Organoborane-catalysed ring expansion and chain elongation of tertiary alkyl amines.

References

  1. Marshall, C. M. et al. J. Med. Chem. 67, 11622–11655 (2024).

    Article  CAS  PubMed  Google Scholar 

  2. Jimenez, D. G. et al. J. Med. Chem. 66, 5377–5396 (2023).

    Article  Google Scholar 

  3. Gradillas, A. & Pérez-Castells, J. Angew. Chem. Int. Edn 45, 6086–6101 (2006).

    Article  CAS  Google Scholar 

  4. Mortensen, K. T. et al. Chem. Rev. 119, 10288–10317 (2019).

    Article  CAS  PubMed  Google Scholar 

  5. Donald, J. R. & Unsworth, W. P. Chem. Eur. J. 23, 8780–8799 (2017).

    Article  CAS  PubMed  Google Scholar 

  6. Zhou, X.-Y., Liu, L., Lyu, H. & Wang, X.-C. Nat. Chem. https://doi.org/10.1038/s41557-025-01849-1 (2025).

    Article  PubMed  PubMed Central  Google Scholar 

  7. Basak, S. et al. Chem. Soc. Rev. 50, 3720–3737 (2021).

    Article  CAS  PubMed  Google Scholar 

  8. Gillions, J. P. et al. Synlett 34, 2117–2128 (2023).

    Article  CAS  Google Scholar 

  9. Dai, C. et al. Asian J. Org. Chem. 12, e202300198 (2023).

    Article  CAS  Google Scholar 

  10. Jones, B. T. & Maulide, N. Angew. Chem. Int. Edn 63, e202320001 (2024).

    Article  CAS  Google Scholar 

  11. Zhou, X.-Y. et al. ACS Catal. 14, 8041–8049 (2024).

    Article  CAS  Google Scholar 

  12. Zhang, M. et al. Angew. Chem. Int. Edn 63, e202317610 (2024).

    Article  CAS  Google Scholar 

  13. Alvarez-Montoya, A. et al. ACS Catal. 14, 4856–4864 (2024).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  14. Efimov, I. V. et al. Eur. J. Org. Chem. 26, e202201450 (2023).

    Article  CAS  Google Scholar 

Download references

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Correspondence to Alexander P. Pulis.

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Barysevich, M., Pulis, A.P. Ring expansion and chain extension of alkyl amines. Nat. Chem. 17, 1299–1300 (2025). https://doi.org/10.1038/s41557-025-01920-x

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