Certain α-(fluoromethyl or difluoromethyl)-α-aminoacetonitriles are prepared by treating the appropriate α-(fluoromethyl or difluoromethyl) ketimine magnesium halide with hydrogen cyanide or with an alkali metal cyanide or ammonium cyanide and a proton source. The products are useful as intermediates for making α-(fluoromethyl or difluoromethyl)-α-amino acids having pharmacological activity.
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(2008/06/13)
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