HYDRIDE-TRANSFER REACTIONS OF BORINE. I. SYNTHESIS OF BORON-CARBON BONDS FROM THE FLUOROETHYLENES

Journal Article · Tue Apr 01 04:00:00 EST 1958 · J. Inorg. & Nuclear Chem.

DOI:https://doi.org/10.1016/0022-1902(58)80056-1· OSTI ID:4335705

Bartocha, B; Graham, W A.G.; Stone, F G.A.

The effect of diborane on four fluoroethylenes: tetrafluoroethylene, trifluoroethylene, 1 : 1-difluoroethylene and vinyl fluoride, was studied at ordinary and higher temperatures. The reactions follow an essentially similar course, and in all cases complex mixtures are obtained. Fluorine in the ethylenes is first replaced by hydrogen, and boron in the products appears mainly as boron trifluoride, ethylboron difluoride, diethylboron fluoride and triethylboron. In the dibornnetetrafluoroethylene reaction polymerization of the olefin takes place with incorporation of some boron in the polymer. Moreover, distribution of boron ln the volatile products is in the order BF/sub 3/>>EtBF/ sub 2/>> EtBF/sub 2/) Et/sub 2/BF. This order changes as the fluorine content of the olefin decreases. Thus with vinyl fiuoride it is, EtBF/sub 2/) Et/sub 2/BF >> BF/sub 2/ -- Et/sub 3/B. The ethylboron fluorides are the main product of the reaction between tetrafluoroethylene, diborane and triethylboron. Under conditions similar to those in which fluoroethylenes underwent complete reaction, diborane failed to react with saturated fluorocarbons such as ethyl fluoride. A possible mechanism for the reactions between diborane and the fluoroethylenes is discussed. (auth)

• Research Organization: Harvard Univ., Cambridge, Mass.
• NSA Number: NSA-12-010377
• OSTI ID: 4335705
• Journal Information: J. Inorg. & Nuclear Chem., Journal Name: J. Inorg. & Nuclear Chem. Vol. Vol: 6
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BORON COMPOUNDS
BORON HYDRIDES
CARBON COMPOUNDS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
ETHYLENE
FLUORIDES
FLUORINATED HYDROCARBONS
FLUORINE
HYDRIDES
HYDROGEN
MIXING
ORGANIC FLUORINE COMPOUNDS
POLYMERS
QUANTITY RATIO
REACTION KINETICS
TEMPERATURE
TRANSPORT
VINYL RADICALS
VOLATILITY