Donor-free bis(trifluoromethyl)cadmium, (CF3)2Cd: a readily available low-temperature difluorocarbene source

Article abstract of DOI:10.1016/0022-328X(95)05848-J

Donor-free bis(trifluoromethyl)cadmium, (CF3)2Cd, has been obtained at -40 deg C from diethylcadmium and CF3I in a quantitative yield.The Raman spectrum of (CF3)2Cd is reported.In the presence of non-coordinating solvents the highly reactive compound eliminates CF2 even below -5 deg C.Its feasibility as a low temperature difluorocarbene source has been demonstrated by difluorocyclopropenation reactions with some alkenes and alkynes as well as by insertion into metal-chlorine bonds.The NMR spectra of some CF2Cl- and CF3-containing arsanes are reported. - Keywords: Cadmium; Arsenic; Difluorocarbene; Trifluoromethyl