反应详情

To a 0° C. solution of methyl 1-(2-(4-(quinolin-2-ylmethoxy)phenyl)acetoxy)cyclopropanecarboxylate (2.0 g, 6.825 mmol) in DMF (20 mL) NaH (49 mg, 20.477 mol) was added and the mixture stirred at RT for 12 h. After complete consumption of the starting material (by TLC), the reaction mixture was quenched with ice water (3 mL) and the aqueous layer was extracted with EtOAc (2×50 mL). The combined organic layers were washed with water (30 mL) and brine (20 mL), dried over anhydrous Na2SO4, filtered, and concentrated in vacuo to afford crude 7-hydroxy-6-(4-(quinolin-2-ylmethoxy)phenyl)-4-oxaspiro[2.4]hept-6-en-5-one (2.0 g, 83%) as a light yellow color solid.

1. customAfter complete consumption of the starting material (by TLC)
2. customthe reaction mixture was quenched with ice water (3 mL)
3. extractionthe aqueous layer was extracted with EtOAc (2×50 mL)
4. washThe combined organic layers were washed with water (30 mL) and brine (20 mL)
5. dry with materialdried over anhydrous Na2SO4
6. filtrationfiltered
7. concentrationconcentrated in vacuo