656-57-5Relevant articles and documents
Improved and facile addition reactions of pentafluorosulfanyl bromide
Lim, Dong Sung,Ngo, Silvana C.,Lal, Sankar G.,Minnich, Kristen E.,Welch, John T.
, p. 5662 - 5663 (2008)
A solution of SF5Br in CCl3F (0.5-1 M) was utilized to effect the addition of pentafluorosulfanyl bromide (SF5Br) to olefins. The reaction of the SF5Br solution in the presence of triethylborane (0.1 equiv) with an olefin over 20 min at 0 °C gave pentafluorosulfanylated compound 2(a-f) in high yield (Table 2). An efficient route for the preparation of synthetically useful SF5-containing esters is also described.
Stable dialkyl ether/poly(hydrogen fluoride) complexes: Dimethyl ether/poly(hydrogen fluoride), a new, convenient, and effective fluorinating agent
Bucsi, Imre,Toeroek, Bela,Marco, Alfonso Iza,Rasul, Golam,Prakash, G. K. Surya,Olah, George A.
, p. 7728 - 7736 (2007/10/03)
The preparation, 1H, 13C, and 19F NMR structural characterization as well as with DFT-based theoretical calculations of stable dialkyl ether/poly(hydrogen fluoride) complexes are reported. Dimethyl ether/poly(hydrogen fluoride) (DMEPHF), are stable complexes of particular interest and use. The DFT calculations, that are in agreement with NMR data, suggest a cyclic poly(hydrogen fluoride) bridged structure for DMEPHF. The complex, DME-5 HF was found to be a convenient and effective new fluorinating agent with the ease. of workup and applied to several fluorination reactions, such as the hydrofluorination and bromofluorination of alkenes, and fluorination of alcohols giving good to excellent yield with high selectivity. Homologous dialkyl ether/poly(hydrogen fluoride) (R2O/[HF]n R = Et, nPr) systems are also stable and suitable for fluorination reactions.
Silver Fluoride Supported on Calcium Fluoride. Improved Fluorination and Halofluorination Reactions
Ando, Takashi,Cork, David G.,Fujita, Mitsue,Kimura, Takahide,Tatsuno, Toshio
, p. 1877 - 1878 (2007/10/02)
Silver fluoride dispersed on the surface of calcium fluoride shows improved fluoride nucleophilicity for halogen exchange and addition to alkenes.