Acetic Anhydride → N-(Isoquinolin-3-yl)acetamide

反応式

C(O[C:5](=[O:7])[CH3:6])(=O)C.[CH:8]1[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=2)[CH:11]=[C:10]([NH2:18])[N:9]=1.C(N(CC)CC)C>C(Cl)Cl>[CH:8]1[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=2)[CH:11]=[C:10]([NH:18][C:5](=[O:7])[CH3:6])[N:9]=1

参加物

実験手順

Acetic anhydride (5.92 mL, 62.6 mmol) was added to a suspension of isoquinolin-3-amine (3.01 g, 20.9 mmol) and triethylamine (3.18 mL, 23.0 mmol) in CH2Cl2 (80 mL) at ambient temperature. The mixture was stirred 3.5 hours, then the volatiles were evaporated in vacuo. The residue was chased with toluene and concentrated in vacuo (3×25 mL) to provide the title compound (3.89 g) as a yellow solid. This material, which was found to also contain small quantities of acetic acid, was used without further purification. 1H NMR (300 MHz, DMSO-d6) δ 10.58 (s, 1H), 9.13 (s, 1H), 8.45 (s, 1H), 8.04 (d, J=7.8 Hz, 1H), 7.88 (d, J=8.2 Hz, 1H), 7.69 (ddd, J=8.2, 6.8, 1.2 Hz, 1H), 7.52 (ddd, J=7.9, 6.9, 1.0 Hz, 1H), 2.13 (s, 3H).