13965-73-6Relevant academic research and scientific papers
New syntheses of diboron tetrafluoride
Brotherton,McCloskey,Manasevit
, p. 41 - 43 (1963)
Diboron tetrafluoride has been prepared by the reactions of sulfur tetrafluoride with boron monoxide, tetrahydroxydiboron, or tetraethoxydiboron.
Fluorination of boron chlorides and boron bromides by reaction with bis(trifluoromethyl)mercury, trichlorofluoromethane, or tribromofluoromethane: Synthesis of BF2B5H8
Saulys,Castillo,Morrison
, p. 1619 - 1624 (2008/10/08)
The interaction of BCl3 with excess CFCl3 has been examined by 11B and 19F NMR. Although small amounts of BFCl2 and BF2Cl, 9% each, are observed after 283 h at 65°C, BF3 is not a major product. At 130°C, however, BF3 is formed in 89% yield after 33 h. Boron trifluoride is isolated in 98 and 97% yields from the reactions of BCl3 and BBr3, respectively, with CFBr3 at 130 °C. At ambient temperature, Hg(CF3)2 reacts with BCl3 and BBr3, generating BF3 in 99 and 98% yields, respectively. The reaction of B2Cl4 with excess CFCl3 was followed spectroscopically at 65, 90, and 130°C, and the 19F chemical shifts of the partially fluorinated diboron tetrahalides have been assigned. Diboron tetrafluoride was isolated from the reaction between B2Cl4 and CFBr3 in 89% yield, from B2Br4 and CFBr3 in 78% yield, and from B2Cl4 and Hg(CF3)2 in 89% yield. Within 45 min the reaction between 1-BCl2B5H8 and Hg(CF3)2 produces the new compound 1-BF2B5H8 in 96% yield. Tetraboron tetrachloride is by far the least reactive of the boron chlorides examined.
