Synthesis and characterisation of new perfluoropropenyl complexes of gold, platinum, palladium, and titanium

Synthesis and characterisation of new silicon–perfluoropropenyl compounds

“…The 19 F{ 1 H} spectra of all of the silicon-peruoropropenyl compounds produced the anticipated results: 3 signals with a relative intensity ratio of 3 : 1 : 1, and correlated with the expectations of the peruoropropenyl fragment. Similarly to the published main-group 9 and transition-metal peruoropropenyl complexes, 10 the CF 3 signal appeared between −65 ppm to −70 ppm with a higher intensity than F gem and F trans making its assignment straightforward.…”

“…This is consistent with the observation of a small amount of (Et) 3 Si( E -C( n Bu) CFCF 3 ) (13 E ). However, in case of bigger group such as t Bu, 10 the steric hindrance prevents any attack on C 1 .…”

“…Was prepared with same procedure described in 10 but on different scales (see ESI, Scheme S1 † ). In a three-necked round-bottom flask under a positive pressure of nitrogen cooled to between −75 to −80 °C were placed dry diethyl ether (150 mL) and one equivalent of Z -HFC-1225ye.…”

Application of Industrially Relevant HydroFluoroOlefin (HFO) Gases in Organic Syntheses

“…Instead, hydrogermylation occurs first, followed by the ACF mediated R3GeF elimination, which results a trifluoromethylalkene (1). This alkene readily accepts the second equivalent of R3GeH to give hydrogermilated derivatives (40) in a formal substitutionsaturation manner. (Scheme 6.)…”

“…The approach was utilized in case of (Z)-1,2,3,3,3-pentafluoroprop-1-ene ((Z)-HFO-1225ye, 42) to obtain gold, platinum, palladium, and titanium complexes (66), which were characterized by X-ray crystallography (Scheme 11B). 40 Avoiding the lithiation of HFOs, Vela et al have shown that 3,3,3-trifluoroprop-1-ene (1) reacts with diketiminatoligated Fe(II) alkane complex (67) to form the σ-bonded trifluoropropane-Fe(II) complex ( 68), via β-hydride elimination, alkene ligand substitution and hydro-metalation steps (Scheme 11C). 41 Bakewell et al have shown that the application of the Al(I) complex ( 69), ligated by the same diketiminate ion, enables C-F bond activation of HFOs (Scheme 11C).…”