C8H14B-s-alkyl

in 1,2,5-trimethyl-benzene byproducts: (Br2B2Se3); from a mixture of BBr3 and (C8H14B)2Se in mesitylene a solid is precipitated (composed B2Br2Se3), the solvent is removed and oily C8H14BBr is obtained; for by-product: elem. anal., MS, mp = 325°C (dec.);

in toluene dropping BBr3 to soln. of bis-9-borabicyclo(3,3,1)nonane at 80-120°C, stirring at 100°C for 30 min; evapn.;

in benzene-d6 in NMR tube, 15 min; not isolated, detected by NMR;

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1: CH2Cl2 / Ambient temperature 2: BCl3 / pentane 3: CH2Cl2 / Ambient temperature 4: BI3 / pentane / Heating View Scheme

1: Br2 2: 24 h / Ambient temperature 3: (oxidation) View Scheme