反应详情

A solution of 2-carboxy-6-benzyloxy-1H-indole (0.125 g; 0.468 mmol), oxalyl chloride (0.5 mmol) and DMF (0.2 ml) in CH2Cl2 was stirred at room temperature for 2 hours. After evaporation to dryness, the residue was redissolved in acetone; ammonium acetate (0.074 g; 0.95 mmol) was added to the solution and the mixture was stirred at room temperature for 1 hour. After evaporation, the residue was purified by flash chromatography eluting with CH2Cl2/acetone 80/20 to give 2-carbamoyl-6-benzyloxy-1H-indole.

1. customAfter evaporation to dryness
2. dissolutionthe residue was redissolved in acetone
3. customAfter evaporation
4. customthe residue was purified by flash chromatography
5. washeluting with CH2Cl2/acetone 80/20