反应详情

A mixture of 1-mesylbut-3-yne (758 mg, 5.10 mmol), iodobenzene (1.25 g, 6.00 mmol), copper(I) iodide (40 mg), PdCl2(PPh3)2 (70 mg) in 12 mL of Et3N is stirred under N2 for 20 hr. The mixture is filtered and washed with Et3N (3×15 mL). The filtrate is evaporated in vacuo and is purified by flash chromatography to give the product as a pale yellow oil (560 mg, 50%) 1H NMR (CDCl3) 2.91 (t, J=6.6 Hz, 2 H), 4.39 (t, J=6.6 Hz, 2 H), 7.30 (m, 3 H), 7.38 (m, 2 H).

1. filtrationThe mixture is filtered
2. washwashed with Et3N (3×15 mL)
3. customThe filtrate is evaporated in vacuo
4. customis purified by flash chromatography