METHOD TO REDUCE THE AMOUNT OF PHOSPHORUS OXYHALIDES AND DIHALOGENATED PENTENES IN 1,1-DIHALO-1-CYCLOPROPYLETHANES

摘要

A method to reduce the amount of phosphorus oxyhalides and dihalogenated pentenes in a mixture of 1,1-dihalo-1-cyclopropylethane and solvent. In one embodiment, the phosphorus oxyhalide is removed by quenching the 1,1-dihalo-1-cyclopropylethane in alcohol and an aqueous amine. In a second embodiment the phosphorus oxyhalide is removed by quenching the 1,1-dihalo-1-cyclopropylethane in alcohol and an epoxide. In a third embodiment the phosphorus oxyhalide is removed by quenching the 1,1-dihalo-1-cyclopropylethane in alcohol and an amine. In the last embodiment the dihalogenated pentenes are removed by contacting the 1,1-dihalo-1-cyclopropylethane with a halogen.