Methanesulfonyl chloride → HCID 19608197, compound

Participants

Reaction Steps

5-Hydroxy-1-[4-(2-methylbenzoylamino)benzoyl]-2,3,4,5-tetrahydro-1H-benzazepine (3.57 g) is dissolved in dichloromethane (30 ml) and pyridine (1.1 ml), and thereto is added dropwise methanesulfonyl chloride (0.9 ml) in small portions at 0° C. Then, the mixture is stirred at room temperature for 3 days. The solvent is distilled off and the resulting residue is poured into ice-water. The precipitated crystal is collected by filtration, washed with water, and dried to give 5-chloro-1-[4-(2-methylbenzoylamino)benzoyl]-2,3,4,5-tetrahydro-1H-benzazepine (3.10 g) as light yellow powder.

Provenance & Evidence