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 nd the mixture was stirred at RT for 12 h. After complete consumption of the starting material (monitored 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 layes 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 solid.

1. customAfter complete consumption of the starting material (monitored 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 layes were washed with water (30 mL) and brine (20 mL)
5. dry with materialdried over anhydrous Na2SO4
6. filtrationfiltered
7. concentrationconcentrated in vacuo