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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 729 (1969), S. 8-20 
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Wagner- Meerwein Rearrangements in the Bicyclo[3.2.2rsqb;nonane Series I )Deamination of the epimeric 6-aminobicyclo[3.2.2]non-8-enes (6 and 7) and 6-aminobicyclo-[3.2.2]nonanes (8, X = NH2 and 9) mainly proceeds via a stereospecific rearrangement to yield exo-alcohols of hte bicyclo[3.3.1]nonane or bicyclo[4.2.1]nonane series with high stereospecifity. In addition, tricyclo[4.2.1.02.8]nonan-7-ol (10) was produced from the endo-amin 7. - In the presence of silver bromide 2-bromobicyclo[3.2.2]nonane (8, X = Br) rearranges to 2-bromobicyclo[3.3.1]nonane (2, Y = Br). - Both the dehydration of bicyclo[3.2.2]nonan-6-ol (1, X = OH) with phosphoric acid and the acid-catalyzed rearrangement of bicyclo-[3.2.2]non-6-ene (12) give rise to bicyclo[3.3.1]non-2-2ne (11, X = H). The reaction of 12 with an excess of monoperphthalic acid yields syn- and anti-bicyclo[3.3.1.13.9]decane (17). -The deamination of 2e-aminomethylbicyclo[3.2.1]octane (18 gives a mixture of alcohols consisting of bicyclo-[4.2.,1]nonan-3-ol (36), bicyclo[4.2.1]nonan-2-ol (3, Y = OH), bicyclo[3.3.1]nonan-2-ol (2, Y = OH), and 2a-and 2e-methylbicyclo[3.2.1]octan-2e- and 2a-ols (20 and 19).
    Notes: Die Desaminierungen der epimeren 6-Amino-bicyclo[3.2.2]nonene-(8) (6 und 7) und 6-Aminobicyclo[3.2.2]nonane (8, X = NH2, und 9) führen stereospezifisch zu exo-Alkoholen der Bicyclo[3.3.1]nonan- oder Bicyclo[4.2.1]nonan-Reihe. Das endo-Amin 7 liefert daneben Tricyclo[4.2.1.02.8]nonanol-(7) (10). - 6-Brom-bicyclo[3.2.2]nonan (8, X = Br) lagert sich in Gegenwart von AgBr in 2-Brom-bicyclo[3.3.1]nonan (2, Y = Br) um. -Die Dehydratisierung von Bicyclo[3.2.2]nonanol-(6) (1, X = OH) mit Phosphorsäure und die säurekatalysierte Umlagerung von Bicyclo[3.2.2]nonanol-(6) (1, X = OH) mit Phosphorsäure und die säurekatalysierte Umlagerung von Bicyclo[3.2.2]nonen-(6) (12) führen zu Bicyclo[3.3.1]nonen-(2) (11, X = H). - Aus 12 bilden sich mit überschüss. Monoperphthalsäure syn- und anti- Bicyclo[3.3.1]nonen-(2)-ol-(9) (14 und 15) sowie vermutlich 10-Oxatricyclo[3.3.1.13.9]decan (17). - Bei der Desaminierung des 2e-Aminomethyl-bicyclo[3.2.1]octans (18) entstehen Bicyclo[4.2.1]nonanol-(3) (36), Bicyclo[4.2.1]nonanol-(2) (3), Y = OH), Bicyclo[3.3.1]nonanol-(2) (2, Y = OH) sowie 2a und 2e-Methyl-bicycol[3.2.1]octanol-2c und 2a) (20 und 19).
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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