Transltlon-Metal-Catalyzed Carbon-Carbon Bond Forming Reactions: Reglo- and Chemoselectlve Iron(0)-Catalyzed Dlene to Olefin Cross-Coupling Reactions

James M. Takacs, Lawrence G. Anderson, G. V. Bindu Madhavan, Mark W. Creswell, Franklin L. Seely, Wayne F. Devroy

Research output: Contribution to journalArticle

Abstract

The iron(0)catalyzed cross coupling of certain aliylic ethers to 2,3-disubstituted 1,3-butadienes results in either a formal [4 + 4] ene reaction across the diene or in the net 1,4-insertbn of the diene unit into the C-H bond at the 2-position of the aliylic ether. The course of the reaction is determined by the ligands attached to the iron(O) catalyst. The active catalyst can be generated in situ, and reactions proceed catalytic in lron(0) at or near ambient temperatures. These new coupling reactions generate synthetically useful functionality (stereodefined olefin and an aliylic ether or a protected carbonyl) on either side of the newly formed carbon-carbon bond. The results of deuterium-labeling experiments suggest a catalytic cycle which involves initial oxidative coupling of the diene and allyl ether in the mechanism of these reactions.

Original languageEnglish (US)
Number of pages1
JournalOrganometallics
Volume5
Issue number11
DOIs
StatePublished - 1986

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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