Enantioselective synthesis of calix [4] arenes with axial and inherent chiralities via palladium/chiral norbornene cooperative catalysis
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Y You, H Cheng, X Huang, P Wang, H Cong…
2024
chemrxiv.org
Inherently chiral calix [4] arenes exhibit broad applications in asymmetric catalysis, chiral recognition, and materials science. However, their synthesis remains a significant challenge. Herein, we report a highly efficient method for the construction of calix [4] arenes with both axial and inherent chiralities through palladium/chiral norbornene (Pd/NBE*) cooperative catalysis. In this cascade reaction, the initial intro-duced axial chirality is dictated by Pd/NBE* cooperative catalysis, while the latter inherent chirality is controlled by the preestablished …
