Hydrochloric Acid → HCID 19089322, compound

Participants

Reaction Steps

The procedure of Example 4B was followed with 2,5-dimethyl-3-thiophenesulfonamide (1.73 g, 9.06 mmole), acetone (10 ml), 1N NaOH (9.1 ml), 4-chlorophenyl isocyanate (1.39 g, 9.0 mmole), 1N HCl (9.1 ml). The aqueous layer was extracted with two 100 ml aliquots of ethyl acetate, which were combined and washed with 50 ml of water. The organic layer was then dried over Na2SO4. The solvent was removed and the residue chromatographed using a mixture of 4% methanol/methylene chloride as the eluent over a 50 mm silica gel column. The solvent was removed to provide the named product.

Provenance & Evidence