反応 #3404114
関連文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08716478B2
反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
実験手順: A mixture of compound 2,5,6-trichloronicotinamide (0.6 g, 2.7 mmol), 1-(3-hydroxypropyl)cyclopropanol (370 mg, 3.2 mmol) and tert-BuOK (363 mg, 3.2 mmol) in DMF was stirred at room temperature overnight and the reaction mixture was then poured into cold water, the mixture was extracted twice with ethyl acetate, the combined organic layers were washed with brine twice, dried over Na2SO4 and concentrated, the residue was purified by column chromatography (silica gel, Petroleum ether:EtOAc=1:0 to 5:1) to give the 5,6-dichloro-2-(3-(1-hydroxycyclopropyl)propoxy)nicotinamide (0.72 g, 73%). 1H-NMR (400 MHz, DMSO-d6) δ (ppm) 8.65 (s, 1H), 8.29 (s, 1H), 8.03 (s, 1H), 5.48 (s, 1H), 4.82 (t, 2H, J=6.4 Hz), 2.36 (m, 2H), 1.97 (m, 2H), 0.94 (t, 2H), 0.73 (t, 2H). the mixture was extracted twice with ethyl acetate the combined organic layers were washed with brine twice dried over Na2SO4 concentrated the residue was purified by column chromatography (silica gel, Petroleum ether:EtOAc=1:0 to 5:1)
ソース ID: ord-e88578d948a344f78c0cd0c7bc435f42