Synthesis of Chiral Ferrocenyl-Substituted -Amino Cyclopentadienes and Their Complexation to Transition Metals
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- 作者：Lothar Schwink ; Paul Knochel ; Thomas Eberle ; and Jun Okuda
- 刊名：Organometallics
- 出版年：1998
- 出版时间：January 5, 1998
- 年：1998
- 卷：17
- 期：1
- 页码：7 - 9
- 全文大小：163K
- 年卷期：v.17,no.1(January 5, 1998)
- ISSN：1520-6041
文摘
CBS reduction of the (chloroacyl)ferrocenes3 provides the chloro alcohols 5 with 
98% ee,whichupon treatment with cyclopentadienides yield the chiral
- or 
-hydroxy cyclopentadienes 6 and 7.The hydroxylfunction of 6 and 7 can be substituted with fullretentionof configuration by a range of N- or S-nucleophiles,giving efficient access to the optically active linkedamino-cyclopentadienyl ligands 11-13.These werecomplexed to an iron center, yielding a ferrocenyl diamine with a large bite angle between the nitrogen donoratoms. Furthermore the first chelating complexationreaction to titanium is presented.
98% ee,whichupon treatment with cyclopentadienides yield the chiral- or -hydroxy cyclopentadienes 6 and 7.The hydroxylfunction of 6 and 7 can be substituted with fullretentionof configuration by a range of N- or S-nucleophiles,giving efficient access to the optically active linkedamino-cyclopentadienyl ligands 11-13.These werecomplexed to an iron center, yielding a ferrocenyl diamine with a large bite angle between the nitrogen donoratoms. Furthermore the first chelating complexationreaction to titanium is presented.