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1 References  













Knölker complex






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From Wikipedia, the free encyclopedia
  

Knölker complex
Identifiers

CAS Number
Properties

Chemical formula

 C17H28FeO3Si2

Solubility in water

 polar organic solvents

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

The Knölker complex is an organoiron compound, which is a catalyst for transfer hydrogenation.[1] The complex features an hydroxycyclopentadienyl ligand bound to an Fe(CO)2H centre. It is generated by the corresponding cyclopentadienone tricarbonyl by treatment with base followed by acidification.[2] The compound is related to the organoruthenium compound called Shvo's complex, a hydroxycyclopentadienyl derivative that also functions as a catalyst for hydrogenation.[3]

References[edit]

  1. ^ Casey, Charles P.; Guan, Hairong (2007). "An Efficient and Chemoselective Iron Catalyst for the Hydrogenation of Ketones". Journal of the American Chemical Society. 129 (18): 5816–5817. doi:10.1021/ja071159f. PMID 17439131.
  • ^ Knölker, Hans-Joachim; Baum, Elke; Goesmann, Helmut; Klauss, Rüdiger (1999). "Demetalation of Tricarbonyl(cyclopentadienone)iron Complexes Initiated by a Ligand Exchange Reaction with NaOH—X-Ray Analysis of a Complex with Nearly Square-Planar Coordinated Sodium". Angewandte Chemie International Edition. 38 (13–14): 2064–2066. doi:10.1002/(SICI)1521-3773(19990712)38:13/14<2064::AID-ANIE2064>3.0.CO;2-W. PMID 34182704.
  • ^ Bullock, R. Morris (2007). "An Iron Catalyst for Ketone Hydrogenations under Mild Conditions". Angewandte Chemie International Edition. 46 (39): 7360–7363. doi:10.1002/anie.200703053. PMID 17847139.

    • Retrieved from "https://en.wikipedia.org/w/index.php?title=Knölker_complex&oldid=1188143427"
    Categories: 
    ●Organoiron compounds
     ●Carbonyl complexes
     ●Hydrogenation catalysts
     ●Trimethylsilyl compounds
     ●Metal hydrides
     ●Cyclopentadienyl complexes
     ●Half sandwich compounds
     ●Iron(II) compounds
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