in chloroform-d1
excess of BBr3 dissolved in dry CDCl3 under N2, added to amine-BF3 soln., excess of amine added or equilibrated mixt. of BF3 and BBr3 added to soln. of amine in dry CDCl3, frozen, degassed in vac.; without isolation;
参考文献
Fox, Arnold; Hartman, Stephen J.; Humphries, Robyn E.
Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999), 1982 , p. 1275 - 1284
LiBr in petroleum ether
soln. of cyclohexenyllithium dropped to BBr3; exothermic react. cooled to 20-30°C, LiBr is filtered off after 4 h, petroleum ether evapd. at reduced pressure; distn.;
Willcockson, G. W.
Patent: US3060218 , 1962 ;
C.A., 1963 , vol. 58, p. 6859
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U.S. Borax Chem. Corp.
Patent: FR1295357 , 1962 ;
C.A., 1963 , vol. 59, p. 2857
