Potassium Carbonate → HCID 89648549, compound

Participants

Reaction Steps

Following procedure A, 2-chloro-5-nitropyridine (300 mg, 1.89 mmol, 1.00 eq) and 4-cyclohexylphenol (417 mg, 2.37 mmol, 1.25 eq) were dissolved in DMSO (6 mL). Anhydrous K2CO3 (397 mg, 2.87 mmol, 1.52 eq) was added and the reaction mixture was stirred at room temperature for 27 h. After extraction with Et2O, the crude product was purified by flash column chromatography (SiO2; EtOAc/petrolether 1:100 to 1:75) to afford the title compound as colourless solid (600 mg, 2.01 mmol, quant. yield). Rf=0.35 (EtOAc/PE 1:20). HRMS (ESI) calcd. for C17H19N2O3+ [M+H]+ 299.1390. found: 299.1392. 1H NMR (400 MHz, CDCl3) δ 9.06 (d, J=2.9 Hz, 1H, aromatic H), 8.46 (dd, J=9.1, 2.9 Hz, 1H, aromatic H), 7.31-7.22 (m, 2H, aromatic H), 7.07 (dd, J=8.7, 2.3 Hz, 2H, aromatic H), 7.00 (d, J=9.1 Hz, 1H, aromatic H), 2.58-2.51 (m, 1H, cyclohexyl H), 2.01-1.64 (m, 5H, cyclohexyl H), 1.56-1.10 (m, 5H, cyclohexyl H). 13C NMR (101 MHz, CDCl3) δ 167.18, 150.71, 145.88, 145.17, 140.22, 134.89, 128.30, 121.12, 111.30, 44.08, 34.59, 26.95, 26.19.

Provenance & Evidence