Iodine induced transfer of dialkylvinylboranes produced by the hydridation of dialkylhaloboranes in the presence of 1-alkynes. Generalization of the zweifel cis- alkene synthesis
作者:Urendra U. Kulkarni、D. Basavaiah、Herbert C. Brown
DOI:10.1016/s0022-328x(00)86837-0
日期:1982.2
Dialkylvinylboranes, prepared conveniently via the hydridation of dialkylhaloboranes in the presence of terminal alkynes, react with iodine in the presence of a base at reduced temperatures to form the correspondingcis-disubstituted alkenes. This development greatly increases the generality of the elegant weifelcis-olefin synthesis.
Vinylic organoboranes. 9. A general stereospecific synthesis of (Z)- and (E)-disubstituted alkenes via organoboranes
作者:Herbert C. Brown、Deevi Basavaiah、Surendra U. Kulkarni、Narayan G. Bhat、J. V. N. Vara Prasad
DOI:10.1021/jo00237a003
日期:1988.1
Photoinduced Metalation of Nonactivated C−Cl Bonds with Samarium Diiodide: Synthesis of Alkenes with High (<i>Z</i>)-Selectivity through <i>β</i>-Elimination Reactions
作者:José M. Concellón、Humberto Rodríguez-Solla、Carmen Simal、Mónica Huerta
DOI:10.1021/ol0523392
日期:2005.12.1
[GRAPHICS]The photoinduced metalation of nonactivated C-Cl bonds of O-acetyl chlorohydrins is promoted by samarium diiodide. As a result of this, beta-elimination of O-acetyl chlorohydrins is achieved, affording the corresponding (Z)-alkenes with total or high stereoselectivity.
BROWN, HERBERT C.;BASAVAIAH, DEEVI;KULKARNI, SURENDRA U.;BHAT, NARAYAN G.+, J. ORG. CHEM., 53,(1988) N 2
作者:BROWN, HERBERT C.、BASAVAIAH, DEEVI、KULKARNI, SURENDRA U.、BHAT, NARAYAN G.+