Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 694, Issue 23, Pages 3800-3805Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2009.07.024
Keywords
Iron; Ruthenium; Carbonyl complexes; Catalysis; Cycloaddition; Lactams
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N,N'-(4-methyl-4H-1,3,4-oxadiazine-5,6-diylidene)-bis-aniline derivatives react with Fe-2(CO)(9) to give dinuclear iron carbonyl complexes. One of the iron atoms is bonded symmetrically to both exocyclic imine nitrogen atoms. The second iron atom shows a side-on coordination towards the C=N bond next to the oxadiazine oxygen atom. In addition, the iron atoms are connected via a metal metal bond. The same oxadiazine derivatives produce chiral spiro-lactams in a ruthenium catalyzed formal [2+2+1] cycloaddition reaction with carbon monoxide and ethylene. (C) 2009 Elsevier B.V. All rights reserved.
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