2,6-Lutidine → HCID 90402594, compound

Participants

Reaction Steps

A solution of 3-((2-ethynylpyridin-4-yl)oxy)-2-methyl-6-nitropyridine (0.2 g, 0.78 mmol) and azidomethyl pivalate (0.209 g, 1.33 mmol; See: Syn Lett. 2005, (18), 2847-2850) were combined in tert-butanol (3 mL) and treated with copper(I) iodide (0.030 g, 0.157 mmol) followed by a solution of 2,6-lutidine (0.091 mL, 0.78 mmol) in MeCN (3 mL) and the resultant mixture was stirred at RT for 3 h. The mixture was partitioned between water (30 mL) and EtOAc (30 mL). The aqueous layer was extracted with EtOAc and the combined organics were washed with brine, dried (Na2SO4) and concentrated. The crude product was purified by silica gel chromatography (EtOAc/Hex) to afford (4-(4-((2-methyl-6-nitropyridin-3-yl)oxy)pyridin-2-yl)-1H-1,2,3-triazol-1-yl)methyl pivalate (0.27 g, 84%) as an orange foam. 1H NMR (400 MHz, DMSO-d6): δ 8.74 (s, 1H), 8.60 (d, J=5.7 Hz, 1H), 8.26 (d, J=8.7 Hz, 1H), 7.94 (d, J=8.7 Hz, 1H), 7.64 (d, J=2.4 Hz, 1H), 7.12 (dd, J=5.6, 2.5 Hz, 1H), 6.37 (s, 2H), 2.50 (s, 3H), 1.11 (s, 9H); MS (ESI) m/z: 413.2 (M+H+).

Provenance & Evidence