Direct, enantioselective α-alkylation of aldehydes using simple olefins.
Capacci AG, et al.
Nature Chemistry, 9(11), 1073-1073 (2017)
Direct β -alkylation of aldehydes via photoredox organocatalysis.
Terrett JA, et al.
Journal of the American Chemical Society, 136(19), 6858-6861 (2014)
Jack A Terrett et al.
Journal of the American Chemical Society, 136(19), 6858-6861 (2014-04-24)
Direct β-alkylation of saturated aldehydes has been accomplished by synergistically combining photoredox catalysis and organocatalysis. Photon-induced enamine oxidation provides an activated β-enaminyl radical intermediate, which readily combines with a wide range of Michael acceptors to produce β-alkyl aldehydes in a...
Zachary C Litman et al.
Nature, 560(7718), 355-359 (2018-08-17)
Living organisms rely on simultaneous reactions catalysed by mutually compatible and selective enzymes to synthesize complex natural products and other metabolites. To combine the advantages of these biological systems with the reactivity of artificial chemical catalysts, chemists have devised sequential...
Andrew G Capacci et al.
Nature chemistry, 9(11), 1073-1077 (2017-10-25)
Although the α-alkylation of ketones has already been established, the analogous reaction using aldehyde substrates has proven surprisingly elusive. Despite the structural similarities between the two classes of compounds, the sensitivity and unique reactivity of the aldehyde functionality has typically...