Ring expansion of substituted norbornadienes for the synthesis of mono- and disubstituted 2-azabicyclo[3.2.1]octadienes
作者:Nova Emelda、Stephen C. Bergmeier
DOI:10.1016/j.tetlet.2008.06.123
日期:2008.9
substituted 2-azabicyclo[3.2.1]octadiene system via reaction with toluenesulfonyl azide. We have found that both and mono- and disubstituted norbornadienes will undergo the cycloaddition/rearrangement sequence to provide the bicyclooctadiene ringsystem as a single regioisomer. The 2-azabicyclo[3.2.1]octane ringsystem can be prepared from the unsaturated 2-azabicyclo[3.2.1]octadiene ringsystem.