Wu Q, Li X, Ma J, Shi Y, Lv J, Yang D. Arylcyanation of Styrenes by Photoactive Electron Donor-Acceptor Complexes/Copper Catalysis.
Org Lett 2024;
26:7949-7955. [PMID:
39259680 DOI:
10.1021/acs.orglett.4c02992]
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Abstract
A novel electron donor-acceptor (EDA) complex/copper catalysis model has been proposed for the construction of 2,3-diarylpropionitriles under visible light conditions. The developed protocol proceeds via intermolecular charge transfer between the photoactive EDA complex of dibutamine (DBA), aryl thianthrenium salts, and trimethylsilyl cyanide (TMSCN), followed by a copper catalytic cycle. UV-vis absorption measurements confirm the participation of EDA complexes as reactive intermediates. This three-component process proceeds smoothly in the presence of pharmaceutically relevant core structures and sensitive functional groups, which offers the possibility of the precise editing of drug molecules with important scaffolds.
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