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
通过相应的γ-二酮的碱催化环化或通过酸催化的相应二
乙烯基酮的纳扎罗夫环化成功地合成了包括螺-环戊基和-环己基片段的四氢
茚。这些取代的
环戊二烯用
正丁基锂金属化。
锂盐与Cp * ZrCl 3的以下反应产生了三个带有螺环
烷烃片段的新型
锆茂。一这些配合物,(η 5 -5',6',7'- trihydrospiro [
环己烷-1,4' - (
2-甲基茚基)])(η 5 -五
甲基环戊二烯基)二
氯化
锆,已通过X射线晶体结构分析。