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yy Synthesis and Oxidation Catalysis of Tris(oxazolinyl)borato cobalt(II) Scorpionates

Titleyy Synthesis and Oxidation Catalysis of Tris(oxazolinyl)borato cobalt(II) Scorpionates
Publication TypeJournal Article
Year of Publication2016
AuthorsReinig, RR, Mukherjee, D, Weinstein, ZB, Xie, WW, Albright, T, Baird, B, Gray, TS, Ellern, A, Miller, GJ, Winter, AH, Bud'ko, SL, Sadow, AD
JournalEuropean Journal of Inorganic Chemistry
Date Published06
Type of ArticleArticle
ISBN Number1434-1948
Accession NumberWOS:000378724700026
Keywordsalkane hydroxylation, alkyl, chemistry, cobalt, coordination, crystal-structure, high-spin cobalt(ii), ligand, nickel, Oxazolines, oxidation, Scorpionates, spectra, Structure elucidation, tetrahedral cobalt(ii) complexes, zinc hydride

tures indicated by these methods were confirmed by X-ray crystallography, the spectroscopic identification of trace contaminants in the material was challenging. The recognition of possible contaminants in the synthesis of To(M)CoCl in combination with the paramagnetic nature of these complexes provided impetus for the utilization of X-ray powder diffraction to measure the purity of the To(M)CoCl bulk sample. The X-ray powder diffraction results provide support for the bulk-phase purity of To(M)CoCl in preparations that avoid 2 and 3. Thus, 1 is a precursor for new [tris(oxazolinyl)borato]cobalt chemistry, as exemplified by its reactions with KOtBu and NaOAc to give To(M)CoOtBu (4) and To(M)CoOAc (5), respectively. Compound 5 is a catalyst for the oxidation of cyclohexane with meta-chloroperoxybenzoic acid (mCPBA), and the rate constants and selectivity for cyclohexanol versus cyclohexanone and epsilon-caprolactone were assessed.

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Alternate JournalEur. J. Inorg. Chem.