Toluene → Methyl 6-(bicyclo[2.2.2]oct-5-ene-2-ylsulphonylmethyl)-3-bromo-2-methoxybenzoate

Participants

Reaction Conditions

Reaction Steps

A solution of methyl 3-bromo-2-methoxy-6-(vinylsulphonylmethyl)benzoate (Intermediate 172, 0.5 g), and cyclohexadiene (0.343 g) in toluene (0.5 ml) was sealed in a vial and heated at 125° C. for 3 days. After cooling, the mixture was evaporated to dryness and the residue was purified by chromatography on silica eluting with a mixture of ethyl acetate and cyclohexane with a gradient of 10-40% to give methyl 6-(bicyclo[2.2.2]oct-5-ene-2-ylsulphonylmethyl)-3-bromo-2-methoxybenzoate (0.455 g) as a white solid.

Provenance & Evidence