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Reductive Coupling of CO: Formation of a 1:1 Adduct of η²-Ketone- and Enediolato-Complex upon Carbonylation of Bis(cyclopentadienyl)hafnacyclobutane^†^‡

Corresponding Author

Prof. Dr. Gerhard Erker

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)Search for more papers by this author

Dipl.-Chem. Peter Czisch,

Dipl.-Chem. Peter Czisch

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

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Dipl.-Chem. Rüger Schlund,

Dipl.-Chem. Rüger Schlund

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

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Dipl.-Chem. Klaus Angermund,

Dipl.-Chem. Klaus Angermund

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

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Prof. Dr. Carl Krüger,

Prof. Dr. Carl Krüger

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

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Prof. Dr. Gerhard Erker,

Corresponding Author

Prof. Dr. Gerhard Erker

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)Search for more papers by this author

Dipl.-Chem. Peter Czisch,

Dipl.-Chem. Peter Czisch

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

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Dipl.-Chem. Rüger Schlund,

Dipl.-Chem. Rüger Schlund

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

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Dipl.-Chem. Klaus Angermund,

Dipl.-Chem. Klaus Angermund

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

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Prof. Dr. Carl Krüger,

Prof. Dr. Carl Krüger

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-4330 Mülheim a. d. Ruhr (FRG)

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First published: April 1986

https://doi.org/10.1002/anie.198603641

Citations: 34

^†

This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie. We thank Dr. R. Benn and his colleagues, Max-Planck-Institut in Mülheim, for the NMR analyses.

^‡

Dedicated to Professor Siegfried Hünig on the occasion of his 65th birthday

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Graphical Abstract

The hafnacyclobutane 1 takes up 1.5 equivalents of CO very rapidly even under normal conditions, forming the polycyclic complex 4 as sole product in good yield. 4 is a stable 1:1 adduct of [(η²-ccyclobutanone)HfCp₂] 2 and the hafnocene enediolate complex 3, the formation of which involves the coupling of two CO molecules——possibly via the intermediacy of the η²-ketone complex 2.

References

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Volume25, Issue4

April 1986

Pages 364-365

Reductive Coupling of CO: Formation of a 1:1 Adduct of η²-Ketone- and Enediolato-Complex upon Carbonylation of Bis(cyclopentadienyl)hafnacyclobutane^†^‡

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Reductive Coupling of CO: Formation of a 1:1 Adduct of η2-Ketone- and Enediolato-Complex upon Carbonylation of Bis(cyclopentadienyl)hafnacyclobutane†‡

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Reductive Coupling of CO: Formation of a 1:1 Adduct of η²-Ketone- and Enediolato-Complex upon Carbonylation of Bis(cyclopentadienyl)hafnacyclobutane^†^‡