Natalya V. Kirij, S. Pasenok, Y. Yagupolskii
Dec 1, 1994
Citations
0
Influential Citations
7
Citations
Journal
Journal of Fluorine Chemistry
Abstract
Abstract The partly new derivatives (R-C 6 H 4 )BiBr 2 and (R-C 6 H 4 ) 2 BiCl (R=4-CH 3 , 4-CF 3 , 3-F, 4-F) have been prepared from the redistribution reactions of the corresponding triarylbismuth compounds with BiBr 3 and BiCl 3 , respectively. Metathesis reactions of these substrates with Cd(CF 3 ) 2 complexes yielded the new aryl(trifluoromethyl)bismuth compounds (R-C 6 H 4 ) 3- n Bi(CF 3 ) n ( n = 1 and 2). The mono(trifluoromethyl) derivatives are quite stable towards dismutations, whereas the bis(trifluoromethyl) compounds rapidly redistribute to give (R-C 6 H 4 ) 2 Bi(CF 3 ) and Bi(CF 3 ) 3 . Comparative reactions of (C 6 H 5 ) 3- n ,Bi(CF 3 ) n with benzoylpyridinium chloride showed that the mixed derivatives preferentially transfer the phenyl group to yield benzophenone. Reactions of R 3 Bi with benzoylpyridinium chloride selectively give the corresponding phenone in good yield.