A catalytic asymmetric dehydrogenative cross-coupling reaction between enones and
tertiary amines enabled by synergistic photoredox and chiral primary amine catalysis
is reported. The reaction was proposed to proceed via the interception of iminium
ion intermediate, in situ generated from photoredox oxidation, by dienamine at α-position,
followed by isomerization, leading to aza-Morita–Baylis–Hillman-type products with
good diastereo- and enantioselectivity.
Key words
cross dehydrogenative coupling - photoredox oxidation - primary amine catalysis -
dienamine - enone