Reactivity of molybdenum and rhenium hydroxo complexes toward organic electrophiles: reactions that afford carboxylato products

L Cuesta, E Hevia, D Morales, J Perez, L Riera, D Miguel

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Abstract

The reactions of the hydroxo complexes [Mo(OH)(eta(3)-methallyl)(CO)(2)(phen)] (1) and [Re(OH)(CO)(3)(Me-2-biPY)] (2) (phen = 1,10-phenanthroline, Me-2-bipy= 4,4'-dimethyl-2,2'-bipyridine) with maleic anhydride, phenyl(ethyl)ketene, diphenylketene, and rac-lactide afford new carboxylato complexes. The molybdenum and rhenium hydroxo complexes react in the same way, and their reactions are quantitative. The products, some of which have been characterized by X-ray diffraction, feature monodentate O-bonded carboxylato ligands, and their treatment with triflic acid yields the triflato complexes [Mo(OTf)(eta(3)-methallyl)(CO)(2)(phen)] and [Re(OTf)(CO)(3)(Me-2-bipy)] and the corresponding free carboxylic acid.

Original languageEnglish
Pages (from-to)1717-1722
Number of pages6
JournalOrganometallics
Volume25
Issue number7
DOIs
Publication statusPublished - 27 Mar 2006

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Keywords

  • transition-metal
  • carbon dioxide
  • polymerization
  • alkoxide
  • ketenes
  • absorption
  • ligands

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