A [4 + 1] Cyclative Capture Access to Indolizines via Cobalt(III)-Catalyzed Csp2-H Bond Functionalization was written by Chen, Xun;Hu, Xinwei;Deng, Yuanfu;Jiang, Huanfeng;Zeng, Wei. And the article was included in Organic Letters in 2016.Quality Control of 2-(m-Tolyl)pyridine This article mentions the following:
A Co(III)-catalyzed [4+1] cycloaddition of 2-arylpyridines or 2-alkenylpyridines with aldehydes through Csp2-H bond activation has been developed. This protocol provides a facile approach to structurally diverse indolizines including benzoindolizines with a broad range of functional group tolerance. 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