3,4-Dichlorobenzaldehyde → 4-(3,4-Dichlorophenyl)-1,4,6,7-tetrahydro-2-methyl-3-(methylsulfonyl)-5H-cyclopenta[b]pyridin-5-one

Participants

Reaction Steps

3,4-Dichlorobenzaldehyde (175 mg, 1.0 mmol), methanesulfonylacetone (137 mg, 1.01 mmol) and 3-aminocyclopentenone (95 mg, 0.98 mmol) were heated to 80° C. in ethanol (4 mL) in a sealed tube for 3 days, cooled and the solvent evaporated. The crude material was flash chromatographed on silica gel (5% methanol/chloroform) to provide 80 mg of the title compound as a tan solid.

Provenance & Evidence