Reductivedimerization of -alkylimines into vicinal diamines has been performed by the action of a catalytic amount of lead(II) bromide and aluminum (1 equiv.) in THF containing trifluoroacetic acid (TFA) or aluminum(III) bromide.
high reduction potential of carbonyl compounds and imines. In the context of photoredox catalysis, tertiary amines are commonly employed as sacrificial co‐reducing agents. Herein, an additional role of the amine is proposed, in which it is essential for the organocatalytic substrate activation. The combination of photoredox catalysis and carbonyl/imine activation enables the reductivecoupling of aldehydes