Preparation and structures of chiral mono and bis ortho-aminoalkyl-substituted 1,1′-trichalcogena[3]ferrocenophanes
✍ Scribed by Shin-ichi Fukuzawa; Daisuke Wachi
- Book ID
- 102229987
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 165 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1042-7163
- DOI
- 10.1002/hc.20189
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✦ Synopsis
We prepared a series of mono and bis ortho-aminoalkyl-substituted chiral trichalcogena[3]ferrocenophanes by dilithiation of mono-and bisaminoferrocenes and subsequent reaction with sulfur and selenium in moderate yields. The X-ray crystallographic analyses of triselena [3]ferrocenophanes revealed that the bridge selenium atom was directed toward to the ortho-substituent (endo). In the bis-type ferrocenophanes, bridge inversion was not detected by 1 H NMR because they would be homomeric.
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