Silylcarboxylic Acids as Bifunctional Reagents: Application in Palladium-Catalyzed External-CO-Free Carbonylative Cross-Coupling Reactions was written by Li, Xiong;Xu, Jie;Li, Yue;Kramer, Soeren;Skrydstrup, Troels;Lian, Zhong. And the article was included in Advanced Synthesis & Catalysis in 2020.HPLC of Formula: 91-02-1 This article mentions the following:
A palladium-catalyzed external-CO-free carbonylative Hiyama-Denmark cross-coupling reaction is presented. The introduction of silylcarboxylic acids I (R = 4-Me, 3-Me, 2-Me, 4-tert-butyl) as bifunctional reagents (CO and nucleophile source) avoids the need for external gaseous CO and a silylarene coupling partner. The transformation features high functional group tolerance and it is successful with electron-rich, -neutral, and -poor aryl iodides ArI (Ar = 4-methoxyphenyl, naphthalen-1-yl, thiophen-3-yl, etc.). Stoichiometric studies and control experiments provide insight into the reaction mechanism and support the hypothesized dual role of silylcarboxylic acids. In the experiment, the researchers used many compounds, for example, Phenyl(pyridin-2-yl)methanone (cas: 91-02-1HPLC of Formula: 91-02-1).
Phenyl(pyridin-2-yl)methanone (cas: 91-02-1) 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.HPLC of Formula: 91-02-1