Donor–Acceptor-Conjugated Porous Polymer for Photopromoted N–H Formylation of Secondary Amines: Efficient In Situ N-Heterocyclic Carbene Catalysis in Radical Manner
Lizhi Bai,
Jiayi Zheng,
Lijuan Ma
et al.
Abstract:The photogenerated reactive oxygen species (ROSs) in N-heterocyclic carbene (NHC)-based heterogeneous photocatalysis hold promise for addressing the challenge of fostering Breslow-derived radicals. In this study, two conjugated porous polymers (CPPs), namely, Im-PCPP-1 and Im-PCPP-2, decorated with donor−acceptor-type porphyrin and imidazole/ imidazolium moieties, are synthesized via Suzuki−Miyaura coupling reaction. Importantly, the ionization of the imidazole monomer effectively tunes the push−pull effect of… Show more
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