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Free keywords:
Brønsted acid; imidodiphosphorimidate; silylation; axial chirality; desymmetrization; kinetic resolution
Abstract:
We report a Brønsted acid catalyzed enantioselective silylation of biaryl diols with an allylsilane as silicon source. This process enables facile access to enantioenriched biaryl silyl ethers with an axial stereogenicity. A control experiment supports a mechanism proceeding by desymmetrization followed by kinetic resolution.