Biomimetic tail-to-head terpene cyclizations using the resorcin[4]arene capsule catalyst
Ivan Cornu, Leonidas-Dimitrios Syntrivanis, Konrad Tiefenbacher
Published: 2023-12-01 DOI: 10.1038/s41596-023-00919-3
Biomimetic THT cyclizations
Resorcin[4]arene capsule
Terpene synthesis
Capsule catalyst
Carbocationic rearrangements








































Extended
Extended Data Fig. 1 HCl stock solution preparation.
Setup for the preparation of the HCl stock solution in chloroform or benzene.
Extended Data Fig. 2 HCl stock solution titration.
HCl solution titration coloration ( a ) before endpoint and ( b ) at the endpoint.
Extended Data Fig. 3 Resorcin[4]arene synthesis.
Resorcin[4]arene synthesis photos (see Procedure for corresponding letters).
Extended Data Fig. 4 Photo of the resorcin[4]arene stock solution prepared in Steps 9–17 of Procedure 2.
Resorcin[4]arene stock solution.
Extended Data Fig. 5 Dissolution of resorcin[4]arene in water-saturated chloroform.
Resorcin[4]arene catalyst in water-saturated chloroform (Procedure 3, Step 5), before ( a ) and after ( b ) complete dissolution.
Extended Data Fig. 6 Reaction setup.
Reaction setup ( a ) screening scale, ( b ) preparative scale synthesis of isolongifolene (Procedure 2) and ( c ) preparative scale synthesis of presilphipefolan-1β-ol (Procedure 3).
Supplementary information
Supplementary Information
Supplementary Figs. 1–10 and derivation of the equations.