Fragmentation of Homoallylic Alkoxides. Thermolysis of potassium 2-substituted bicyclo [2.2.2]oct-5-en-2-alkoxides
作者:Roger L. Snowden、Karl H. Schulte-Elte
DOI:10.1002/hlca.19810640726
日期:1981.11.4
2.2]oct-5-en-2-alkoxides derived from alcohols 2–17 at 90–120° in hexamethylphosphoric triamide affords unsaturated ketones resulting from allylic bond cleavage. The mechanistic and synthetic aspects of this anionic fragmentation are discussed with reference to the formation of 1-(3′-cyclohexenyl)-2-alkanones 18–28via initial heterolytic C(1), C(2)-bondcleavage in the substrate alkoxide and regioselective