| | 1 | Author
| Bernhard Rieger, Gerhard Jany, M.Anfred Steimann, Riad Fawzi | Requires cookie* | | | Title
| Synthesis of Ethylene Bridged Biscyclopentadiene Ligand Precursor Compounds and Some of their a/isa-Zirconocene Derivatives via Chiral Epoxides: A Synthetic Strategy of High Variability  | | | | Abstract
| The chiral ligand precursor systems [l-C p M -R '-2 -R 2-2-Cp2]ethane 5 a -d bearing two dif ferent cyclopentadienyl fragments (C p1, Cp2 = Cp, Ind, Flu) and a variable bridge substitu tion pattern (R 1, R2 = H, Ph, cyclopentyl, cyclohexyl) were prepared starting from the corre sponding epoxides. The solid state structures o f six organic intermediates are reported in order to prove the stereochemistry o f the ligand form ing reactions. Treatment o f the dilithio salts o f 5a~d with ZrCl4 in C H 2C12 afforded chiral a«sa-zirconocene dichlorides (6a-d). | | | |
Reference
| Z. Naturforsch. 49b, 451 (1994); eingegangen am 20. Oktober 1993 | | | |
Published
| 1994 | | | |
Keywords
| Chiral Epoxides, Fluorenyl A lcohols, Spirocyclopropanes, Biscyclopentadienes, Chiral ansa-Zirconocene Dichlorides | | | |
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| default:Reihe_B/49/ZNB-1994-49b-0451.pdf | | | | Identifier
| ZNB-1994-49b-0451 | | | | Volume
| 49 | |
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