A zirconocene(IV) chloro-alkyl and dialkyl containing chiral α-carbon atoms, [Zr(η-C5H5)2(R*)(X)] [R* = CH(SiMe3)C6H4Me-o, X = Cl or R*]: Synthesis, stereoisomerism, and d1 reduction products

Michael F. Lappert; Colin L. Raston

doi:10.1039/C39810000173

A zirconocene(IV) chloro-alkyl and dialkyl containing chiral α-carbon atoms, [Zr(η-C₅H₅)₂(R)(X)] [R = CH(SiMe₃)C₆H₄Me-o, X = Cl or R*]: Synthesis, stereoisomerism, and d¹ reduction products

Michael F. Lappert
, Colin L. Raston

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

22 Citations (Scopus)

Abstract

Reactions of [Zr(η-C₅H₅)₂Cl ₂] with LiR*(tmeda) [R* = CH(SiMe₃)C ₆H₄Me-o, tmeda = Me₂NCH₂CH ₂-NMe₂] under different conditions yield [Zr(η-C ₅H₅)₂(Cl)R*] (3), and the diastereoisomers meso - (2a) and rac - (2b) [Zr(η-C₅H ₅)₂R*₂], the latter of which is prepared from (2a) by photolysis or thermolysis; [Zr(η-C₅H ₅)₂R*(thf)x] (x = 0-2) is obtained and characterised by e.s.r. spectroscopy in tetrahydrofuran (thf) solution by (a) Na[C ₁₀H₈]-thf-reduction of complex (2a), (2b), or (3) [via the radical anion of (3), itself accessible by reversible one-electron reduction of (3)], or (b) Na-Hg-thf-reduction of (3).

Original language	English
Pages (from-to)	173-175
Number of pages	3
Journal	Journal of the Chemical Society, Chemical Communications
Issue number	4
DOIs	https://doi.org/10.1039/C39810000173
Publication status	Published - 1981
Externally published	Yes

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title = "A zirconocene(IV) chloro-alkyl and dialkyl containing chiral α-carbon atoms, [Zr(η-C5H5)2(R*)(X)] [R* = CH(SiMe3)C6H4Me-o, X = Cl or R*]: Synthesis, stereoisomerism, and d1 reduction products",

abstract = "Reactions of [Zr(η-C5H5)2Cl 2] with LiR*(tmeda) [R* = CH(SiMe3)C 6H4Me-o, tmeda = Me2NCH2CH 2-NMe2] under different conditions yield [Zr(η-C 5H5)2(Cl)R*] (3), and the diastereoisomers meso - (2a) and rac - (2b) [Zr(η-C5H 5)2R*2], the latter of which is prepared from (2a) by photolysis or thermolysis; [Zr(η-C5H 5)2R*(thf)x] (x = 0-2) is obtained and characterised by e.s.r. spectroscopy in tetrahydrofuran (thf) solution by (a) Na[C 10H8]-thf-reduction of complex (2a), (2b), or (3) [via the radical anion of (3), itself accessible by reversible one-electron reduction of (3)], or (b) Na-Hg-thf-reduction of (3).",

author = "Lappert, \{Michael F.\} and Raston, \{Colin L.\}",

year = "1981",

doi = "10.1039/C39810000173",

language = "English",

pages = "173--175",

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

issn = "0022-4936",

publisher = "Chemical Society",

number = "4",

}

A zirconocene(IV) chloro-alkyl and dialkyl containing chiral α-carbon atoms, [Zr(η-C₅H₅)₂(R*)(X)] [R* = CH(SiMe₃)C₆H₄Me-o, X = Cl or R*]: Synthesis, stereoisomerism, and d¹ reduction products. / Lappert, Michael F.; Raston, Colin L.
In: Journal of the Chemical Society, Chemical Communications, No. 4, 1981, p. 173-175.

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

TY - JOUR

T1 - A zirconocene(IV) chloro-alkyl and dialkyl containing chiral α-carbon atoms, [Zr(η-C5H5)2(R*)(X)] [R* = CH(SiMe3)C6H4Me-o, X = Cl or R*]

T2 - Synthesis, stereoisomerism, and d1 reduction products

AU - Lappert, Michael F.

AU - Raston, Colin L.

PY - 1981

Y1 - 1981

N2 - Reactions of [Zr(η-C5H5)2Cl 2] with LiR*(tmeda) [R* = CH(SiMe3)C 6H4Me-o, tmeda = Me2NCH2CH 2-NMe2] under different conditions yield [Zr(η-C 5H5)2(Cl)R*] (3), and the diastereoisomers meso - (2a) and rac - (2b) [Zr(η-C5H 5)2R*2], the latter of which is prepared from (2a) by photolysis or thermolysis; [Zr(η-C5H 5)2R*(thf)x] (x = 0-2) is obtained and characterised by e.s.r. spectroscopy in tetrahydrofuran (thf) solution by (a) Na[C 10H8]-thf-reduction of complex (2a), (2b), or (3) [via the radical anion of (3), itself accessible by reversible one-electron reduction of (3)], or (b) Na-Hg-thf-reduction of (3).

AB - Reactions of [Zr(η-C5H5)2Cl 2] with LiR*(tmeda) [R* = CH(SiMe3)C 6H4Me-o, tmeda = Me2NCH2CH 2-NMe2] under different conditions yield [Zr(η-C 5H5)2(Cl)R*] (3), and the diastereoisomers meso - (2a) and rac - (2b) [Zr(η-C5H 5)2R*2], the latter of which is prepared from (2a) by photolysis or thermolysis; [Zr(η-C5H 5)2R*(thf)x] (x = 0-2) is obtained and characterised by e.s.r. spectroscopy in tetrahydrofuran (thf) solution by (a) Na[C 10H8]-thf-reduction of complex (2a), (2b), or (3) [via the radical anion of (3), itself accessible by reversible one-electron reduction of (3)], or (b) Na-Hg-thf-reduction of (3).

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U2 - 10.1039/C39810000173

DO - 10.1039/C39810000173

M3 - Article

AN - SCOPUS:37049113703

SN - 0022-4936

SP - 173

EP - 175

JO - Journal of the Chemical Society, Chemical Communications

JF - Journal of the Chemical Society, Chemical Communications

IS - 4

ER -

A zirconocene(IV) chloro-alkyl and dialkyl containing chiral α-carbon atoms, [Zr(η-C₅H₅)₂(R)(X)] [R = CH(SiMe₃)C₆H₄Me-o, X = Cl or R*]: Synthesis, stereoisomerism, and d¹ reduction products

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