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. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. TThe standard enthalpy of formation is 100.2 kJ·mol−1 in the liquid phase and 140.4 kJ·mol−1 in the gas phase. Category: pyridine-derivatives.
Song, Wenyue;Rao, Xiaofeng;Bu, Qingqing;Liu, Ning research published 《 Carbazole-bridged NCN-pincer palladium complex catalyzed direct C-H arylation reaction of azoles》, the research content is summarized as follows. A new type of pincer palladium complexes C1∼C6 based on the strong donor strength of carbazoles skeleton were synthesized. The air- and moisture-stable complexes C1∼C6 act as efficient catalysts for the direct arylation of azoles with (hetero)aryl bromides in good to excellent yields with broad substrate scope used KOAc as sole base under aerobic conditions. It was demonstrated that this developed protocol was used as catalytic system for the direct C-H bond arylation of thiazoles under relatively mild reaction conditions at a low catalyst loading of 0.5 mol%.
Category: pyridine-derivatives, 5-Bromo-2-fluoropyridine is a useful research compound. Its molecular formula is C5H3BrFN and its molecular weight is 175.99 g/mol. The purity is usually 95%.
5-Bromo-2-fluoropyridine is a boronic acid that has been shown to react with iodides and form 5-bromo-2-fluoroiodobenzene. The reaction of 5-bromo-2-fluoropyridine with benzene gives the same product as the reaction with 1,3,5-trioxane. The UV absorption of 5-bromo-2-fluoropyridine is found at 230 nm and 260 nm. It also has an absorption band in the infrared region at 1625 cm−1. Vibrational progressions have been observed for this molecule, which are due to dipole moments and electron density distributions in the molecule.
5-bromo-2-fluoropyridine is used in the synthesis of heteroaromatic and aniline derivatives of piperidines as potent ligands used for vesicular acetylcholine transport. , 766-11-0.