Benzylamine → HCID 22097201, compound

Participants

Reaction Steps

1.3 g (3.7 mmol) of 1-(carboxymethyl)-7-chloro-6-(2,5-dimethyl-1-pyrrolyl)-2,3(1H,4H)-quinoxalinedione and 1.6 ml (12.3 mmol) of benzylamine were dissolved in 30 ml of dimethylformamide and, at 0° C., a solution of 0.89 ml (4.1 mmol) of diphenylphosphoryl azide in 10 ml of dimethylformamide was added dropwise. The mixture was stirred at room temperature for 16 h and then poured into ice-water, and the aqueous phase was extracted with ethyl acetate. The organic phase was dried and concentrated under reduced pressure. The residue was purified by chromatography on silica gel (mobile phase: toluene/acetone=1:1) to yield 1.1 g (67%) of the product.

Provenance & Evidence