2-chloro-4-(2-oxoethyl)benzonitrile

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 4-Allyl-2-chlorobenzonitrile (265 mg, 1.5 mmol) in DCM (2 mL) and methanol (2 mL) was cooled to −78° C. Then O3 was bubbled into for 10 minutes. Then dimethylsulfide (1 mL) was added and the mixture was stirred at RT for 5 hours. The mixture was concentrated in vacuo to give the title product. Then O3 was bubbled into for 10 minutes Then dimethylsulfide (1 mL) was added The mixture was concentrated in vacuo