Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Rate-determining step of the proton transfer process compared with the active intermediate generation step in the reaction coordinate of the X–H (X = O, N) insertion product formation.
  • fig. S2. Single-crystal x-ray structure determination of compound 6i (CCDC no. 1407544).
  • fig. S3. Two-dimensional 1H-1H NOESY spectrum of compound 12.
  • fig. S4. LC-MS spectra of the reaction solution containing indole, triazole, paraformaldehyde, H2O18, and Rh2(OAc)4.
  • fig. S5. LC-MS spectra of the reaction solution containing indole, triazole, paraformaldehyde, and Rh2(OAc)4.
  • fig. S6. Calculated free energy profiles of the formation of vinylimine ion E at 140°C in chlorobenzene.
  • table S1. Reaction condition screening.
  • Legends for data file S1 to S4

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Other Supplementary Material for this manuscript includes the following:

  • data file S1. Characterization of products.
  • data file S2. X-ray crystal data.
  • data file S3. NMR spectra of compounds.
  • data file S4. DFT calculation data.

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