1: C10H8BrF3 With copper(I) thiophene-2-carboxylate; (S)-(-)-N-(2,2-dimethylpropionyl)-2-lt;(diphenylphosphino)methylgt;pyrrolidine in dichloromethane Inert atmosphere; 2: phenyl-magnesium bromide in diethyl ether; dichloromethane T=-78°C; Inert atmosphere; optical yield given as percent eeenantioselective reaction;

1: C10H8BrF3 With [(4S,5S)-1,3-bis(bis(2-methylphenyl)methyl)-4,5-diphenylimidazolidin-2-ylidene]copper(I) chloride in dichloromethane T=-78°C; Inert atmosphere; 2: phenyl-magnesium bromide in diethyl ether; dichloromethane T=-78°C; 0.5 h; Inert atmosphere; optical yield given as percent eeregioselective reaction;