1980
DOI: 10.1002/cber.19801130212
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Die Spaltung nichtgespannter CC‐Einfachbindungen in Tricarbonyleisenkomplexen 5,5‐dialkylsubstituierter Cyclopentadiene

Abstract: Die Spaltung einer CC-Einfachbindung im q4-Spirononadieneisen-Komplex 9 wird durch Fq(CO), in siedendem Benzol initiiert und fuhrt zum uberbruckten (o-Alkyl-R-cyclopentadieny1)eisen-Komplex 10. Dieser reagiert -wiederum unter der Einwirkung von Fq(CO), -weiter zum zweikernigen ,,Propylfulven-Komplex" 16. Die an Spirocyclopentadienen 6 beobachteten Umwandlungen unter CC-Bindungsspaltung lassen sich auf offenkettige 5,5-Dialkylcyclopentadiene 1 iibertragen. Aus Kreuzungsversuchen und stereochemischen Befunden ka… Show more

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Cited by 46 publications
(7 citation statements)
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“…The reversibility of methyl transfer between the ruthenium center and the π-allyl ligand is similar in many regards to that seen by Green, Eilbracht, Crabtree, , and most recently Wolczanski . In 1974, Benfield and Green reported the reversible transfer of an ethyl group between the Cp ligand and the metal in Cp 2 MoEtCl .…”
Section: Discussionsupporting
confidence: 70%
“…The reversibility of methyl transfer between the ruthenium center and the π-allyl ligand is similar in many regards to that seen by Green, Eilbracht, Crabtree, , and most recently Wolczanski . In 1974, Benfield and Green reported the reversible transfer of an ethyl group between the Cp ligand and the metal in Cp 2 MoEtCl .…”
Section: Discussionsupporting
confidence: 70%
“…Abnormal versus normal NHCs: The vast majority of NHCs have the metal attached at C2, but in a growing class this attachment occurs at C4 (5). This has most often been an unintended result, but abnormal NHCs (aNHC) have also been deliberately synthesized.…”
Section: ð7þmentioning
confidence: 98%
“…To be sure, phosphines can give cyclometalation and P-R bond cleavage [2,3], and cyclopentadienyl ligands can undergo cyclometalation and alkyl migration [4,5], but these are rare enough to be counted as exceptions.…”
Section: Introductionmentioning
confidence: 99%
“…Als Umwandlung der Acylkomplexe 3, 8, 9 und 16 mit Fe,(CO), Bekanntlich",12) fordert Fe,(CO), nicht nur die Spaltung von C -C-Einfachbindungen in Tricarbonyleisen-Komplexen 5,5-dialkylsubstituierter Cyclopentadiene, sondern es vermag auch die thermisch stabile Metall-Kohlenstoff-Bindung der resultierenden q-Alkyl-q5-alkylcyclopentadienyl-Komplexe zu aktivieren und zu losen. Dies gilt auch fur die aus den Spiroheptadienen erhaltenen Acylkomplexe.…”
Section: Umsetzung Von L-methylspiro[24]hepta-46-dien (7) Rnit Fe(unclassified