4-bromo-2-(difluoromethoxy)benzonitrile

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

Procedure: To a solution of 4-bromo-2-(difluoromethoxy)benzonitrile (620 mg, 2.5 mmol) in 30 ml of toluene was added LiCl (322 mg, 7.5 mmol), Pd(PPh3)4 (60 mg), Allyl tributyltin (990 mg, 3.0 mmol), and then the mixture was heated to reflux overnight. After the reaction was completed, the reaction solution was diluted with EtOAc and filtered. The filtrate was concentrated and purified with silica gel column chromatograph to give crude 4-allyl-2-(difluoromethoxy)benzonitrile. the mixture was heated to reflux overnight filtered The filtrate was concentrated purified with silica gel column chromatograph