TY - JOUR
T1 - Stereospecific synthesis of a metallo-enolate
T2 - E-[zr{oc(sime3)=char}cl(ŋ-c5h5)2] (structurally characterised) via carbonylation of [zr{ch(sime3)ar}cl(ŋ-c5h5)2] (ar = 9-anthryl)
AU - Lappert, Michael F.
AU - Raston, Colin L.
AU - Engelhardt, Lutz M.
AU - White, Allan H.
PY - 1985/4/15
Y1 - 1985/4/15
N2 - Treatment of Li{CH(SiMe3)Ar}(tmeda) (Ar = 9-anthryl, tmeda = Me2N[CH2]2NMe2) with zirconocene(1v) chloride in tetrahydrofuran at 20 °C affords [Zr{CH(SiMe3)Ar}CI(ŋ-C5H5)2],which rapidly reacts with carbon monoxide (Pco 1 atm, 20 °C) in toluene to afford exclusively the E-metallo-enolate [Zr{OC(SiMe3)=CHAr}CI(ŋ-C5H5)2], having Zr-0 1.950(4) Å and < Zr-O-C 157.7(3)°.
AB - Treatment of Li{CH(SiMe3)Ar}(tmeda) (Ar = 9-anthryl, tmeda = Me2N[CH2]2NMe2) with zirconocene(1v) chloride in tetrahydrofuran at 20 °C affords [Zr{CH(SiMe3)Ar}CI(ŋ-C5H5)2],which rapidly reacts with carbon monoxide (Pco 1 atm, 20 °C) in toluene to afford exclusively the E-metallo-enolate [Zr{OC(SiMe3)=CHAr}CI(ŋ-C5H5)2], having Zr-0 1.950(4) Å and < Zr-O-C 157.7(3)°.
UR - http://www.scopus.com/inward/record.url?scp=37049093141&partnerID=8YFLogxK
U2 - 10.1039/C39850000521
DO - 10.1039/C39850000521
M3 - Article
AN - SCOPUS:37049093141
SP - 521
EP - 522
JO - Journal of the Chemical Society, Chemical Communications
JF - Journal of the Chemical Society, Chemical Communications
SN - 0022-4936
IS - 8
ER -