1: 1,1-difluoro-2-(N,N-diethylcarbamoyloxy)ethene With n-butyllithium; zirconocene dichloride in tetrahydrofuran; hexane T=-78 - 20°C; Dehalogenation; 3 h; 2: iodobenzene With triphenylphosphine; zinc(II) iodide; tris(dibenzylideneacetone)dipalladium(0) chloroform complex in tetrahydrofuran; hexane Arylation; 2 h; Heating;