| 초록 |
Helix is a fundamental secondary structure of biomacromolecules, such as protein and DNA and inspired by nature, the helical structure has been used to achieve enantioselective chemical reactions. Asymmetric synthesis with the helix scaffolds constructed by chiral molecules has been developed by various research groups. However, to the best of our knowledge, helical catalysts from achiral compounds have not been reported. Previously, we demonstrated the construction of supramolecular polymers with desired handedness by circularly polarized light. Triphenylamine molecules containing diacetylene moieties were self-assembled into helical aggregates in a chlorinated solvent by circularly polarized light, and the chirality was fixed by photopolymerization of the diacetylenes. In this study, we used the double and triple bonds of polymerized helix to coordinate rhodium as a chiral ligand for asymmetric catalysis, and investigated the structure and catalytic activities. |
