Formic Acid → HCID 10176502, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2,3,4,5-tetrahydro-1,4-benzothiazepine (4.56 g), formic acid (20 ml) and toluene (60 ml) was heated under reflux at 90° C. for four hours and then at 120° C. for a further three hours. The solvent was removed from the mixture by evaporation at reduced pressure. Purification of the residue by flash chromatography using dichloromethane as eluent gave 4-formyl-2,3,4,5-tetrahydro-1,4-benzothiazepine, which was recrystallised from hexane. Yield 3.73 g (m.p. 84°-87° C.).

Provenance & Evidence