Stereospecific synthesis of a metallo-enolate: 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)

Michael F. Lappert; Colin L. Raston; Lutz M. Engelhardt; Allan H. White

doi:10.1039/C39850000521

Stereospecific synthesis of a metallo-enolate: 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)

Michael F. Lappert
, Colin L. Raston
, Lutz M. Engelhardt
, Allan H. White

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

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 (P_co 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)°.

Original language	English
Pages (from-to)	521-522
Number of pages	2
Journal	Journal of the Chemical Society - Series Chemical Communications
Issue number	8
DOIs	https://doi.org/10.1039/C39850000521
Publication status	Published - 15 Apr 1985
Externally published	Yes

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@article{71fd8bfb67be4685b4e6eaa36d08e3c1,

title = "Stereospecific synthesis of a metallo-enolate: E-[zr\{oc(sime3)=char\}cl({\ng}-c5h5)2] (structurally characterised) via carbonylation of [zr\{ch(sime3)ar\}cl({\ng}-c5h5)2] (ar = 9-anthryl)",

abstract = "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({\ng}-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({\ng}-C5H5)2], having Zr-0 1.950(4) {\AA} and < Zr-O-C 157.7(3)°.",

author = "Lappert, \{Michael F.\} and Raston, \{Colin L.\} and Engelhardt, \{Lutz M.\} and White, \{Allan H.\}",

year = "1985",

month = apr,

day = "15",

doi = "10.1039/C39850000521",

language = "English",

pages = "521--522",

journal = "Journal of the Chemical Society - Series Chemical Communications",

issn = "0022-4936",

publisher = "Chemical Society",

number = "8",

}

Stereospecific synthesis of a metallo-enolate: 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). / Lappert, Michael F.; Raston, Colin L.; Engelhardt, Lutz M. et al.
In: Journal of the Chemical Society - Series Chemical Communications, No. 8, 15.04.1985, p. 521-522.

Research output: Contribution to journal › Article › peer-review

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 - https://www.scopus.com/pages/publications/37049093141

U2 - 10.1039/C39850000521

DO - 10.1039/C39850000521

M3 - Article

AN - SCOPUS:37049093141

SN - 0022-4936

SP - 521

EP - 522

JO - Journal of the Chemical Society - Series Chemical Communications

JF - Journal of the Chemical Society - Series Chemical Communications

IS - 8

ER -

Stereospecific synthesis of a metallo-enolate: 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)

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