1976
DOI: 10.1002/anie.197607761
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Structure and Absolute Configuration of an Organo‐Iron Compound Having Iron as Chiral Center

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Cited by 11 publications
(4 citation statements)
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“…For the (À) 579 diastereomer 4 a (see Scheme 3) the absolute configuration at the iron atom has been determined to be S Fe , the priority of the ligands being h 5 -C 5 H 5 b PPh 3 b COOmenthyl b CO. [45,46] According to Ruch [47] tetrahedral complexes and half-sandwich complexes of the three-legged piano-stool type belong to chirality class a, for which an achiral border between R and S exists. In contrast, complexes with square-pyramidal and octahedral skeletons belong to chirality class b, for which there is no such achiral border.…”
Section: Absolute Configuration and Chiroptical Propertiesmentioning
confidence: 99%
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“…For the (À) 579 diastereomer 4 a (see Scheme 3) the absolute configuration at the iron atom has been determined to be S Fe , the priority of the ligands being h 5 -C 5 H 5 b PPh 3 b COOmenthyl b CO. [45,46] According to Ruch [47] tetrahedral complexes and half-sandwich complexes of the three-legged piano-stool type belong to chirality class a, for which an achiral border between R and S exists. In contrast, complexes with square-pyramidal and octahedral skeletons belong to chirality class b, for which there is no such achiral border.…”
Section: Absolute Configuration and Chiroptical Propertiesmentioning
confidence: 99%
“…This has been confirmed by the X-ray determination of the absolute configuration at the iron atom in starting material and reaction product. [45,46,55] The reaction mechanism can be explained as follows. The attack of methyllithium does not occur as expected at the ester group of the starting material, but at the carbonyl group, which is transformed into the new functional group, the acetyl substituent.…”
Section: Complexes That Are Configurationally Stable At the Metal Atomentioning
confidence: 99%
“…[45,46] Tetraedrische Komplexe und Halbsandwichkomplexe des Dreibein-Klavierstuhl-Typs gehören nach Ruch [47] zur Chiralitätsklasse a, für die eine achirale Grenze zwischen (R) und (S) existiert. Verbindungen mit quadratisch-pyramidalen und oktaedrischen Gerüsten dagegen gehören zur Chiralitätsklasse b, für die es keine solche achirale Grenze gibt.…”
Section: Absolute Konfiguration Und Chiroptische Eigenschaftenunclassified
“…[54] Diese chiroptischen Daten weisen auf eine Bild-Spiegelbild-Beziehung zwischen Ausgangsmaterial und Produkt und damit auf einen Inversionsmechanismus hin, der durch die röntgenstrukturanalytische Bestimmung der absoluten Konfiguration am Eisenatom in Ausgangsmaterial und Reaktionsprodukt bestätigt wurde. [45,46,55] Abbildung 6. Inversion der Konfiguration bei der Reaktion von 4 a mit LiCH 3 zu 16 b. CD-Spektren von 4 a und 16 b (Konzentrationen etwa 10 À3 mol L À1 in Benzol).…”
Section: Am Metallatom Konfigurationsstabile Komplexe ± Mechanismenunclassified