Stereoselective Synthesis of New Oxa-Cages via Alkyl Radical Cyclization to Vinylogous Carbonates
作者:Santosh Gharpure、Suheel Porwal
DOI:10.1055/s-2007-1000847
日期:2008.1
An efficient strategy is developed for the stereoselectivesynthesis of unsymmetrical dioxa-cage compounds containing ether linkages employing a 6-exo-trig alkyl radicalcyclization to vinylo- gous carbonates. The radical precursors are obtained from the Diels-Alder adducts via iodoetherification and conversion of the al- cohol moiety to vinylogous carbonate. The formation of mono-oxa- cage compounds