Wiley InterScience Backfile Collection 1832-2000
Chemistry and Pharmacology
Metal Complexes in Inorganic Matrices, 8. - Chromium Tricarbonyl Complexes of Benzoylacetonate-Substituted Titanium-, Zirconium-, and Aluminium Alkoxides*Benzoylacetone (bzac-H) reacts with one equivalent of Al(OtBu)3 or Zr(OPr)4 to give the mono-substituted compounds (bzac)Al(OtBu)2 (1b) and (bzac)Zr(OPr)3 (1a), while with one equivalent of Ti(OtBu)4 or Zr(OtBu)4 the bis-substituted derivatives (bzac)2Ti(OtBu)2 (3c) and (bzac)2Zr(OtBu)2 (3d) are obtained. Upon heating in dibutyl ether, 1b disproportionates into (bzac)2Al(OtBu) (3b) and Al(OtBu)3. Thermal reaction of 1a, 3b, and 3c with Cr(CO)6 leads to metal complexes having a Cr(CO)3 moiety π-bonded to the phenyl group of the benzoylacetonate ligand.
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