Journal
CANADIAN JOURNAL OF CHEMISTRY
Volume 87, Issue 1, Pages 328-334Publisher
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/V08-151
Keywords
aerobic oxidation; trans-tetrahydrofuran (THF); cobalt; X-ray crystallography; oxidation; coordination
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- DOD Prostate Cancer Research Program [DAMD17-01-1-0109]
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The aerobic oxidation of 5-hydroxy pentenes to trans-tetrahydrofurans (THFs), the Mukaiyama oxidation, has in recent years emerged as a powerful tool in synthetic chemistry. In this report we describe the first crystal structures of 2,4-dioxo-alkanoic acid dialkylamide complexes for both Co(II) and Co(III) salts. The Co(II) structures show an unprecedented arrangement of atoms, with a central Co(II)(H2O)(6) flanked by two Co(II) atoms each coordinated with three anionic chelating ligands. The dimeric Co(III) structures show two anionic chelating ligands and bridging hydroxyl groups.
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