反応 #2069951

反応方程式

sodium carbonate

2,2-Dimethoxypropane

10-camphorsulfonic acid

dimethylformamide

→

title compound

1-{4-[2-(2,2-Dimethyl-1,3-dioxolan-4-yl)-1-ethynyl]benzyl}-isoquinoline

反応条件

後処理

1. 1
   抽出the reaction mixture was extracted with ethyl acetate
2. 2
   洗浄washed with water
3. 3
   乾燥dried over anhydrous magnesium sulfate
4. 4
   濃縮concentrated under reduced pressure
5. 5
   その他The residue was purified by silica gel column chromatography

実験手順

2,2-Dimethoxypropane (0.36 ml), 10-camphorsulfonic acid (43 mg), and molecular sieves (4 Å) were added to a solution of the compound of Example B109 (34 mg) in dimethylformamide (2 ml), and this reaction mixture was stirred at 75° C. for 9 hours. After an saturated aqueous sodium carbonate solution was added, the reaction mixture was extracted with ethyl acetate, washed with water, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give the title compound (14 mg).

出典