Butyl 4-aminobenzoate → Butyl 4-(p-toluenesulfonylaminocarbonylamino)benzoate

Participants

Reaction Steps

A three necked flask equipped with a dropping funnel, a thermometer and a reflux condenser was charged with 15.4 g of n-butyl 4-aminobenzoate and then with 150 ml of acetonitrile. The mixture in the flask was agitated to dissolve the n-butyl 4-aminobenzoate in acetonitrile. To the solution, 17.3 g of p-toluenesulfonylisocyanate were added dropwise through the dropping funnel at room temperature, while the resultant mixture was agitated by a magnetic stirrer.

Provenance & Evidence