Zhang, Lei; Pfund, Bjorn; Wenger, Oliver S.; Hu, Xile published an article in 2022. The article was titled 《Oxidase-Type C-H/C-H Coupling Using an Isoquinoline-Derived Organic Photocatalyst》, and you may find the article in Angewandte Chemie, International Edition.Name: 4-Cyanopyridine The information in the text is summarized as follows:
Herein, an isoquinoline-derived diaryl ketone-type photocatalyst I, which has much enhanced absorption of blue and visible light compared to conventional diaryl ketones was reported. This photocatalyst enables dehydrogenative cross-coupling of heteroarenes e.g., II with inactivated and activated alkanes viz. cyclohexane, THF, adamantane, etc. as well as aldehydes viz. propanal, pentanal, 3-methylbutanal, cyclopropanecarbaldehyde, cyclopentanecarbaldehyde using air as the oxidant. A wide range of heterocycles with various functional groups are suitable substrates. Transient absorption and excited-state quenching experiments point to an unconventional mechanism that involves an excited state ”self-quenching” process to generate the N-radical cation form of the sensitizer, which subsequently abstracts a hydrogen atom from the alkane substrate to yield a reactive alkyl radical. After reading the article, we found that the author used 4-Cyanopyridine(cas: 100-48-1Name: 4-Cyanopyridine)
4-Cyanopyridine(cas: 100-48-1) belongs to pyridine. Pyridine is widely used in the precursor to agrochemicals and pharmaceuticals. Also, it is used as an important reagent and organic solvent.Name: 4-Cyanopyridine