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

1995; Elsevier BV; Volume: 503; Issue: 2 Linguagem: Inglês

10.1016/0022-328x(95)05848-j

ISSN

1872-8561

Autores

R. Eujen, Berthold Hoge,

Tópico(s)

Carbon dioxide utilization in catalysis

Resumo

Donor-free bis(trifluoromethyl)cadmium, (CF3)2Cd, has been obtained at −40 °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°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.

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