反应详情

温度

0 °C

To a 0° C. solution of 1.22g dihydroquinidine (0.0037 mol) in 30mL of CH2Cl2 was added 0.78mL of Et3N (0.0056 mol; 1.5 eq), followed by 0.71mL of p-chlorobenzoyl chloride (0.005 mol; 2 eq) in 1mL CH2Cl2After stirring 30 minutes at 0° C. and 1 hour at room temperature, the reaction was quenched by the addition of 10% Na2CO3 (20mL). After separation, the aqueous layer was extracted with three 10mL portions of CH2Cl2. The combined organic layers were dried over Na2S04 and the solvent removed under vacuum. The crude product was purified as described above. Dihydroquinidine p-chlorobenzoate (1) was obtained in 91% yield (1.5g) as a white foam.

1. customthe reaction was quenched by the addition of 10% Na2CO3 (20mL)
2. customAfter separation
3. extractionthe aqueous layer was extracted with three 10mL portions of CH2Cl2
4. customThe combined organic layers were dried over Na2S04
5. customthe solvent removed under vacuum
6. customThe crude product was purified