Phenylacetic Acid → Methyl 2-(N-tert-butylsulfamoyl)-4-(2-phenylacetylhydrazino)benzoate

Participants

Reaction Conditions

Reaction Steps

1.5 g (7.3 mmol) of dicyclohexylcarbodiimide (DCC) are added to a solution of 2.0 g (6.6 mmol) of methyl 2-(N-tert-butylsulfamoyl)-4-hydrazinobenzoate, 0.9 g (6.6 mmol) of phenylacetic acid and 0.03 g of 4-dimethylaminopyridine (DMAP) in 20 ml of CH2Cl2 at 0° C. The mixture is stirred at 25° C. for 15 hours, the solid is filtered off with suction and the organic phase is washed successively with water, 1N HCl and NaHCO3 solution, dried and evaporated. This gives 1.6 g (58% of theory) of methyl 2-(N-tert-butylsulfamoyl)-4-(2-phenylacetyl-hydrazino)benzoate with the following nuclear magnetic resonance data:

Provenance & Evidence