کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1325734 | 1499942 | 2010 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Zirconium complexes bearing η5-5′,6′,7′-trihydrospiro[cycloalkane-1,4′-indenyl] ligands Zirconium complexes bearing η5-5′,6′,7′-trihydrospiro[cycloalkane-1,4′-indenyl] ligands](/preview/png/1325734.png)
Tetrahydroindenes including spiro-cyclopentyl and -cyclohexyl fragments were successfully synthesized either via base-catalyzed cyclization of the respective γ-diketone or via acid-catalyzed Nazarov cyclization of the corresponding divinylketones. These substituted cyclopentadienes were metallated with nBuLi. The following reaction of the lithium salts with Cp*ZrCl3 gave three novel zirconocenes bearing spiro-cycloalkane fragments. One of these complexes, (η5-5′,6′,7′-trihydrospiro[cyclohexane-1,4′-(2-methylindenyl)])(η5-pentamethyl-cyclopentadienyl)zirconium dichloride, has been characterized by X-ray crystal structure analysis.
Tetrahydroindenes including spiro-cyclopentyl and -cyclohehyl fragments were successfully synthesized either via base-catalyzed cyclization of the respective γ-diketone or via acid-catalyzed Nazarov cyclization of the corresponding divinylketones. These substituted cyclopentadienes were metallated with nBuLi. The following reaction of the lithium salts with Cp*ZrCl3 gave three novel zirconocenes bearing spiro-cycloalkane fragments. Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 695, Issues 15–16, 1–15 July 2010, Pages 1940–1948