Borylation of dicarbanions: syntheses of new five-and eight-membered boron-carbon rings
作者:G.E. Herberich、U. Eigendorf、C. Ganter
DOI:10.1016/0022-328x(91)83072-c
日期:1991.1
Olefin metallation provides an efficient route to novel unsaturated boracarbocycles. Thus the first 3,7-dimethylene-1,5-diboracyclooctanes R2NB[CH2C( = CH2)CH2]2BNR2 (R = Et, (i)Pr) and the first 3,4-dimethyleneboracyclopentanes activated CH2C(= CH2)C(= CH2)CH2BNR2 (R = Et, (i)Pr) have been made by treatment of dichloro(dialkylamino)boranes with [Li(TMEDA)]2[C(CH2)3] and K2[C2(CH2)4], respectively.
HERBERICH, G. E.;EIGENDORF, U.;GANTER, C., J. ORGANOMET. CHEM., 402,(1991) N, C17-C19