Dual‐Synergistic S‐Scheme Heterojunction for Targeting Dibenzylamine via Cascade Photoredox Catalysis of Benzylamine

with complete DBA selectivity. Mechanistic investigations suggest that BA undergoes dehydrocoupling on oxidative ZIS to form the BBAD intermediate, which then migrates to T4-CdCu for reduction to DBA via adsorbed H species. As proof-of-concept, a drug, Cinacalcet, exemplifies the synthesis potential of secondary amines. This work provides a sustainable route for synthesizing secondary amines and inspires the design of advanced heterojunction catalysts for efficient redox cascade reactions.