Abstract
Several new planar chiral bifunctional phosphine compounds based on the [2.2]paracyclophane backbone with a pseudo-ortho substitution pattern have been synthesized and applied to the aza-Morita–Baylis–Hillman reaction. An enantiopure phosphine-phenol catalyst bearing an aryl group as a spacer connected to a phosphino group exhibited an exceptionally high reactivity (rt, 2–40min) and good enantioselectivity (up to 85% ee).
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