[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[N:2]1.I[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].CN[C@@H]1CCCC[C@H]1NC>[Cu]I.CCCCCC.C(OCC)(=O)C.CN(C)C=O>[C:11]1([N:1]2[C:5]3[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=3[N:3]=[N:2]2)[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1
Using the general procedure, benzotriazole (0.119 g, 1.00 mmol) was coupled with iodobenzene (134 μL, 1.20 mmol) using CuI (9.5 mg, 0.050 mmol, 5.0 mol %), K3PO4 (2.1 mmol), trans-N,N′-dimethyl-1,2-cyclohexanediamine (16 μL, 0.10 mmol, 10 mol %) and dimethylformamide (1.0 mL) to give the crude product. Column chromatography (2×15 cm, hexane:ethyl acetate 9:1) provided 0.186 g (95% yield) of the product as a white solid. 1H NMR (400 MHz, CDCl3): δ8.17 (m, 1H), 7.78 (m, 3H), 7.62 (m, 2H), 7.55 (m, 2H), 7.42 (m, 1H).
Wird geladen…
