Group 9 [Cp*MIII] complex-catalyzed C-H olefination of arenes in water at room temperature: a study on the catalytic activity was written by Zhang, Hailong;Yang, Zhongzhen;Liu, Jinxing;Yu, Xinling;Wang, Qiantao;Wu, Yong. And the article was included in Organic Chemistry Frontiers in 2019.Category: pyridine-derivatives This article mentions the following:
Herein, the discovery of group 9 [Cp*MIII] complexes to catalyze the olefination of arenes in water at ambient temperature is reported. The reaction afforded the desired products in moderate to good yields. Among the group 9 [Cp*MIII] complexes, [Cp*RhCl2]2 was found to be the most efficient catalyst in this reaction, with the highest catalytic activity, the best scalability, the best recyclability and the broadest substrate scope. Mechanistic investigation revealed that the C-H bond cleavage was most likely to be achieved through the concerted metalation-deprotonation (CMD). In the experiment, the researchers used many compounds, for example, 2-(m-Tolyl)pyridine (cas: 4373-61-9Category: pyridine-derivatives).
2-(m-Tolyl)pyridine (cas: 4373-61-9) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Pyridine derivatives are also useful as small-molecule α-helix mimetics that inhibit protein-protein interactions, as well as functionally selective GABA ligands.Category: pyridine-derivatives