反应详情

A mixture of 4-hydroxy-3-nitrobenzamide D125 (0.49 g, 2.69 mmol), cyclohexene (1.105 g, 13.45 mmol) and 10% palladium on carbon (0.143 g, 0.135 mmol) in ethanol (20 mL) was heated to reflux under argon for 3 hr. The cooled mixture was filtered through celite and the filtrate concentrated to dryness in vacuo to afford a yellow/brown solid. The product was purified by silica gel chromatography eluting with 0-15% 2M ammonia in MeOH/DCM. The title compound was isolated as a pale brown powder, 0.26 g, 57.2%.

1. temperaturewas heated
2. temperatureto reflux under argon for 3 hr
3. filtrationThe cooled mixture was filtered through celite
4. concentrationthe filtrate concentrated to dryness in vacuo
5. customto afford a yellow/brown solid
6. customThe product was purified by silica gel chromatography
7. washeluting with 0-15% 2M ammonia in MeOH/DCM