Oxidative Condensations To Form Benzimidazole-Substituted Potassium Organotrifluoroborates was written by Molander, Gary A.;Ajayi, Kehinde. And the article was included in Organic Letters in 2012.Quality Control of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)picolinaldehyde This article mentions the following:
A library of benzimidazole-substituted potassium organotrifluoroborates was prepared via the condensation of various potassium formyl-substituted aryl- and heteroaryltrifluoroborates with aromatic 1,2-diamines under oxidative conditions. The efficient Suzuki-Miyaura cross-coupling of products thus formed to various aryl and heteroaryl bromides was achieved in good yields. The method allows the facile preparation of benzimidazole-containing triarom. products in two steps from simple potassium formyl substituted aryl- or heteroaryltrifluoroborates. In the experiment, the researchers used many compounds, for example, 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)picolinaldehyde (cas: 1073354-14-9Quality Control of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)picolinaldehyde).
5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)picolinaldehyde (cas: 1073354-14-9) belongs to pyridine derivatives. Pyridine has a conjugated system of six 锜?electrons that are delocalized over the ring. The molecule is planar and, thus, follows the H鐪塩kel criteria for aromatic systems. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals.Quality Control of 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)picolinaldehyde