文献的合成步骤和氢谱数据:According to the general procedure, a solution of phenylacetylene (0.23 mL, 2.1 mmol) and 2-picolylazide (257 mg, 1.9 mmol), sodium ascorbate (38 mg, 10 mol %) and CuSO4·5H2O (5 mg, 1 mol %) was stirred for 16 h at ambient temperature. The solution was diluted with water (30 mL) and cooled to 273 K for 1 h with stirring. The precipitate was collected by filtration and dried in vacuo to yield the product as a light yellow powder (392 mg, 87%). 1H NMR (500 MHz; CDCl3): δ 5.70 (2H, s, triazole? CH2?pyridyl), 7.24 (1H, d, J = 7.8 Hz, pyridyl-H), 7.28 (1H, ddd, J = 7.6, 4.9, 1.1 Hz, pyridyl-H), 7.34?7.30 (1H, m, phenyl-H), 7.43?7.39 (2H, m, phenyl-H), 7.70 (1H, td, J = 7.7, 1.8 Hz, pyridyl-H), 7.84?7.82 (2H, m, phenyl-H), 7.93 (1H, s, triazole-H), 8.62 (1H, ddd, J = 4.9, 1.7, 0.9 Hz, pyridyl-H).
