In 2019,Advanced Synthesis & Catalysis included an article by Zhu, Tong-Hao; Zhang, Xiao-Chen; Cui, Xian-Lu; Zhang, Ze-Yu; Jiang, Hui; Sun, Shan-Shan; Zhao, Li-Li; Zhao, Kai; Loh, Teck-Peng. Electric Literature of C33H24IrN3. The article was titled 《Direct C(sp2)-H Arylsulfonylation of Enamides via Iridium(III)-Catalyzed Insertion of Sulfur Dioxide with Aryldiazonium Tetrafluoroborates》. The information in the text is summarized as follows:
An iridium(III)-catalyzed three-component reaction of enamides e.g., N-benzyl-N-(1-phenylvinyl)acetamide, aryldiazonium tetrafluoroborates ArN2BF4 [Ar = 4-FC6H4, naphthalen-1-yl, 2-methyloxycarbonyl-thiophen-3-yl, etc.], and 1,4-diazabicyclo[2.2.2]octane bis(sulfur dioxide) (DABSO) for the direct C(sp2)-H arylsulfonylation of enamides e.g., (E)-N-benzyl-N-(1-phenyl-2-(phenylsulfonyl)vinyl)acetamide is developed. This transformation provides a robust and straightforward approach for preparing a diverse array of β-amidovinyl sulfones in moderate to excellent yields and high stereoselectivities without Light-emitting diode (LED) radiation. This transformation also features mild conditions, broad substrate scopes, and excellent functional group tolerance. After reading the article, we found that the author used fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6Electric Literature of C33H24IrN3)
fac-Tris(2-phenylpyridine)iridium(cas: 94928-86-6) 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.Electric Literature of C33H24IrN3