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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 103 (1970), S. 2768-2774 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Stereochemistry and Solvolysis of some 3,4-Disubstituted ChromansReduction of 3-bromachromanone-(4) and of 3-bromo-2,6- dimethylchromanone-(4) yields the cis-3-bromo-4- hydroxychromans 1 and 2 which we converted to the trans-3,4-dihalogenochromans 8-11. Hydrolysis of 8-11 produces the trans-3-bromo-4-hydroxychromans 3 and 4; Solvolysis with alkohols yields the trans -3-bromo-4-alkoxychromans 5-7; by reaction with phenol we got the 3-bromo-4-arylchroman 12.
    Notes: Reduktion von 3-Brom-chromanon-(4) und 3-Brom-2.6 - dimethyl-chromanon-(4) liefert die 3c-Brom-4r -hydroxy-chromane 1 und 2, welche in die 3t.4r-Dihalogen-chromane 8-11 umgewandelt wurden. Die Hydrolyse von 8-11 ergibt die 3t-Brom- 4r-hydroxy-chromane 3 und 4; die Solvolyse mit Alkoholen führt zu den 3t- Brom-4r-alkoxy-chromanen 5-7; bei der Umsetzung mit Phenol haben wir dagegen das 3-Brom-4-aryl-chroman 12 erhalten.
    Type of Medium: Electronic Resource
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