(difluoroiodo)benzene-boron trifluoride in dichloromethane T=-78 - 20°C;

1: cyclopropane carboxylic acid cyanide With n-butyllithium; diisopropylamine in tetrahydrofuran; hexane T=-78°C; 0.333333 h; Inert atmosphere; 2: 2,2,6,6-tetramethyl-1-piperidinyloxy, free radical With Fe(η5-C5H5)2(PF6) in tetrahydrofuran; hexane T=-78°C; Inert atmosphere;

(i) LDA, THF, (ii) CuCl2, DMF; Multistep reaction;