Transition Metal-Diene Complexes in Organic Synthesis, Part 14.1 Regioselective Iron-Mediated [2+2+1] Cycloadditions of Alkynes and Carbon Monoxide: Synthesis of Substituted Cyclopentadienones

Hans-Joachim Knölker; Jochen Heber; Charles H. Mahler

doi:10.1055/s-1992-21563

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Synlett 1992; 1992(12): 1002-1004
DOI: 10.1055/s-1992-21563

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Transition Metal-Diene Complexes in Organic Synthesis, Part 14.¹ Regioselective Iron-Mediated [2+2+1] Cycloadditions of Alkynes and Carbon Monoxide: Synthesis of Substituted Cyclopentadienones

Hans-Joachim Knölker^* , Jochen Heber, Charles H. Mahler

^*Institut für Organische Chemie, Universität Karlsruhe, Richard-Willstätter-Allee, D-7500 Karlsruhe 1, Germany

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Publication Date:
08 March 2002 (online)

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The reaction of pentacarbonyliron with trimethylsilylsubstituted alkynes regioselectively provides tricarbonyl(η⁴-2,5-bistrimethylsilylcyclopentadienone)iron complexes.