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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 1320-1327 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Derivatives of 1,3-Benzodioxole, 45. Syntheses of Substituted DihydronaphthalenecarbaldehydesAt room temperature the reaction of the Vilsmeier complex with the propenyl compounds 1a and b leads to the acrylaldehydes 2a and b. A rise of temperature up to 100°C yields the dimethylammonium salts 3a and b, which can be hydrolized to the indanones 4a and b. The dihydronaphthalenecarbaldehydes 6a - g are obtained by treatment of the allyl compounds 5a - g with the Vilsmeier reagent at room temperature. The aldehydes 6c and f were subjected to Palladium catalysed reduction leading to the naphthalenes 8c and f, which are prepared by an alternative route.
    Notes: Die Einwirkung des Vilsmeier-Komplexes auf die Propenylverbindungen 1a und b führt bei Raumtemperatur zu den Acrylaldehyden 2a und b. Bei 100°C entstehen die Dimethylammoniumsalze 3a und b, die zu den Indanonen 4a und b hydrolysierbar sind. Die Behandlung der Allylverbindungen 5a - g bei Raumtemperatur mit Vilsmeier-Reagenz ergibt die Dihydronaphthalincarbaldehyde 6a - g. Die Aldehyde 6c und f wurden durch Palladium-Katalyse zu den Naphthalinen 8c und f abgebaut, die zum Konstitutionsbeweis auf unabhängigem Wege dargestellt wurden.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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