| Abstract: | A detailed investigation of the helical part of the resin‐supported peptide catalyst possessing a turn motif and helical unit was conducted to clarify the structure‐activity relationship. The peptide catalyst with an α‐ or 310‐helical tether was effective for an enantioselective Friedel–Crafts‐type alkylation in water. From the spectral analysis of the peptide with an optimum sequence, it was demonstrated that the helical moiety of the peptide catalyst played a role for stabilizing a terminal turn structure. |
