Abstract
The action of N-bromosuccinimide (NBS) and water on (Z, Z)-1,5-cyclooctadiene (1) results in the formation ofendo,endo-2,5-dibromo-9-oxabicyclo [4.2.1]nonane (2),endo,endo-2,6-dibromo-9-oxabicyclo[3.3.1]nonane (3),trans-6-bromo-(Z)-cycloocten-5-ol (4a),endo-6-bromo-cis-bicyclo[3.3.0]octan-2-ol (5a), andtrans-5,6-dibromo-(Z)-cyclooctene (6).2 and3 are considered to be produced from intermediary4a via transanular participation of the hydroxyl group.5a is formed in a result of transanular double bond participation.
The reaction of1 withNBS and methanol similarly produces2, 3,trans-6-bromo-5-methoxy-(Z)-cyclooctene (4b),endo-6-bromo-2-methoxy-cis-bicyclo-[3.3.0]octane (5b), and6.
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4. Mitt.:G. Haufe, M. Mühlstädt undJ. Graefe, Mh. Chem.108, 1431 (1977).
2 Aus der Dissertation zur Promotion A vonG. Haufe, Karl Marx-Universität Leipzig, 1975.
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Haufe, G., Kleinpeter, E., Mühlstädt, M. et al. Reaktion von (Z,Z)-1,5-Cyclooctadien mit N-Bromsuccinimid in Gegenwart von Wasser oder Methanol. Monatshefte für Chemie 109, 575–585 (1978). https://doi.org/10.1007/BF00912775
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DOI: https://doi.org/10.1007/BF00912775