Pyridine → HCID 86634691, Verbindung

Beteiligte Stoffe

Reaktionsschritte

To a solution of 1-methyl-1H-pyrazol-3-ylamine (0.23 g, 2.3 mmol, 1.0 equiv) and 2-bromopyridyl-5-boronic acid (0.70 g, 3.5 mmol, 1.5 equiv) in 10 Ml dichloromethane was added pyridine (0.43 Ml, 5.4 mmol, 2.4 equiv), copper (II) acetate (0.63 g, 3.5 mmol, 1.5 equiv) and 4 Å molecular sieves. The heterogeneous reaction mixture was allowed to stir vigorously open to air overnight. The reaction was then filtered through Celite, concentrated in vacuo, and purified by silica gel chromatography to afford the title compound: 1H NMR (400 MHz, DMSO-d6) δ ppm 3.80 (s, 3 H) 5.84 (s, 1 H) 7.45 (d, J=8.59 Hz, 1 H) 7.60 (d, J=2.02 Hz,1 H) 7.86 (dd, J=8.59, 3.03 Hz, 1 H) 8.41 (d, J=2.78 Hz, 1 H) 8.92 (s, 1. H); (M+H)+ 255.1.

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