in neat (no solvent) byproducts: HCF3, HCF2Br; React. of starting materials is carried out in the absence of a solvent.; Decompn. materials (BF3, HCF3, HCF2Br) and a black, tar-like residue are obtained.;

in neat (no solvent) byproducts: (H2NMe2)F, BF4(1-), F(1-); react. of B-compd. with more than threefold excess of HF; total yield of byproducts CF3BF3(1-), BF3*HNMe2, BF4(1-) and F(1-) -identified by NMR spectroscopy- is more than 15percent;