Trifluoroboron etherate

The intensity of each signal of the spectrum measured at 150°C was determined for polystyrenes prepared with benzoyl peroxide, n-butyllithium, and trifluoroboron etherate catalysts. The observed relative intensities of the signals were in good agreement with the calculated values assuming Bernoullian statistics with Pr of 0.54, 0.56, and 0.45 for the radical, anionic, and cationic polystyrenes, respectively (Table II). The Py> value of the radical polystyrene was nearly the same as that reported by Shepherd et al. (10). 

Maruya, K., Miziroki, T., and Ozaki, A., Dimerization of ethylene catalysed hy ct-aryl nickel compound in the presence of trifluoroboron etherate. Bull. Chem. Soc. Jpn., 45, 2255, 1972. 

TRIFLUOROBORON (7637-07-2) Reacts with moist air, water, steam, producing hydrogen fluoride, boric acid, and fluoboric acid. Violent reaction with allyl chloride, alkyl nitrate, benzyl nitrate, calcium oxide, ethyl ether, iodine, magnesium tetrahydroaluminate, active metals (except magnesium). Used as a polymerization catalyst contact with monomers may cause explosions. Corrodes most metals in the presence of moisture. 

Alternate Names boron trifluoride diethyl etherate boron trifluoride ethyl etherate boron trifluoride ethyl ether complex trifluoroboron diethyl etherate. 

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