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  • 1
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Aluminium Alkyls with Carbonyl Compounds, III. - Hydroalumination of Ketoenol Acetates, A New Synthesis of 2,4-DiolsThe Enolacetates 2a-g of aliphatic and aromatic ketones are treated with HAl(i-C4H9)2 at room temperature to afford, after subsequent acetolysis, the 2,4-diacetates 3a-g. The diacetates are isolated in 65-80% yields and analyzed by gaschromatography. In hydroalumination of a mixture of 2-acetoxy-1-butene and 2-acetoxy-2-butene there is no selection between the two isomers.
    Notes: Die Enolacetate 2a-g aliphatischer und aromatischer Ketone werden durch Umsetzung mit HAl(iso-C4H9)2 bei Raumtemperatur und anschließender Acetolyse in die 2.4-Diacetate 3a-g übergeführt. Die Diacetate werden destillativ in Ausbeuten von 65-80% isoliert und gaschromatographisch analysiert. Bei der Hydroaluminierung einer Mischung von 2-Acetoxy-1-buten und 2-Acetoxy-2-buten wird keine Selektion zwischen den beiden Isomeren festgestellt.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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