反应详情

To a solution of N,N-diethyl-4-methoxy-2-methylbenzamide (4.43 g, 20 mmol) in THF (100 ml) at −78° C., tert-butyllithium 1.7 M in pentane (17.65 ml, 30.0 mmol) solution was added dropwise. The reaction mixture was stirred for 0.5 h before addition of 5-isopropoxypicolinonitrile (3.41 g, 21.00 mmol) in THF (2 mL). The resulting solution was warmed to rt and stirred for 16 h. The reaction mixture was quenched with water, neutralized with 1 N HCl. The precipitated solid (5 g) was collected and washed with water to give the product 3-(5-isopropoxypyridin-2-yl)-6-methoxyisoquinolin-1-ol 4 g as a white solid. MS: MS m/z 311.11 (M++1).

1. customThe reaction mixture was quenched with water
2. customThe precipitated solid (5 g) was collected
3. washwashed with water