copper(l) iodide in tetrahydrofuran in sealed evacuated ampule; mixt. of Et3GeLi and CuI (equimol. amt.) inTHF stirred at -30°C for 30 min; pentafluorobenzoyl chloride added; stirred for 1 h while being gradually brought to room temp.; hexane added; ppt. filtered off; product isolated by fractionation of the yellow soln.; GLC; mass-spectrometry; NMR; elem. anal.;

water; ammonium chloride in hexane in sealed evacuated ampule; soln. of Et3GeLi added to soln. of amide at-40°C; stirred at the same temp. for 3 h; hydrolyzed with satd. NH4Cl soln.; dried; isolated by fractionation of the dried org. part ; GLC; mass-spectrometry; elem. anal.;