Aromatic C-H Methylation and Other Functionalizations via Rh(III)-Catalyzed Migratory Insertion of Bis(phenylsulfonyl)carbene and Subsequent Transformations was written by Chen, Lei;Peng, Rui-jun;Zhang, Xue-jing;Yan, Ming;Chan, Albert S. C.. And the article was included in Journal of Organic Chemistry in 2021.Quality Control of 2-(m-Tolyl)pyridine This article mentions the following:
A Rh(III)-catalyzed migratory insertion of bis(phenylsulfonyl)carbene into aromatic C-H bonds has been developed. A variety of bis(phenylsulfonyl)methyl derivatives e.g., I were prepared with good yields under mild conditions. The methylated products e.g., II were readily obtained after reductive desulfonylation. Furthermore, the diverse transformations of bis(phenylsulfonyl)methyl to other functional groups III (R = trideuteriomethyl, formyl, Et, etc.) were demonstrated. In the experiment, the researchers used many compounds, for example, 2-(m-Tolyl)pyridine (cas: 4373-61-9Quality Control of 2-(m-Tolyl)pyridine).
2-(m-Tolyl)pyridine (cas: 4373-61-9) belongs to pyridine derivatives. Pyridine is diamagnetic and has a diamagnetic susceptibility of −48.7 × 10−6 cm3·mol−1.The molecular electric dipole moment is 2.2 debyes. The standard enthalpy of formation is 100.2 kJ·mol−1 in the liquid phase and 140.4 kJ·mol−1 in the gas phase. Pyridine groups exist in countless molecules, and their applications include catalysis, drug design, molecular recognition, and natural product synthesis.Quality Control of 2-(m-Tolyl)pyridine