Improved Syntheses and Some Selective Transformations of 2,2,4,4-Tetrachloro-8-oxabicyclo[3.2.1]oct-6-en-3-ones
作者:Stefan Sendelbach、Rüdiger Schwetzler-Raschke、Andreas Radl、Roland Kaiser、Gerhard H. Henle、Hilmar Korfant、Stefan Reiner、Baldur Föhlisch
DOI:10.1021/jo972037g
日期:1999.5.1
couple leads to the corresponding oxabicyclic ketones 4. On catalytic hydrogenation of the tetrachlorooxabicyclooctenones 3a-c hydrogenolysis of the exo-carbon-chlorine bonds occurs, leading to the endo-2,endo-4-dichloro-8-oxabicyclooctan-3-ones 8a-c. With lithiumaluminumhydride and Grignard reagents, 8a and 3a form the endo-3-alcohols 12a-c and 13, respectively, the latter with uncertain configuration