Title of article :
Spirally twisted imidazolium iminyl ylide structures from 1,2-rearrangements in reactions of imidazolium dicyanomethanide 1,3-dipoles with maleic anhydride: new perspectives on the Boekelheide–Fedoruk ring expansions
Author/Authors :
Butler، نويسنده , , Richard N. and Gavin، نويسنده , , Helena A. and Moloney، نويسنده , , Eamon M. and McArdle، نويسنده , , Patick and Cunningham، نويسنده , , Desmond and Burke، نويسنده , , Luke A.، نويسنده ,
Abstract :
The reactions of 1-substituted-imidazolium-3-dicyanomethanides with maleic anhydride gave new ylide products from a Michael reaction and 1,2-rearrangements. These experiments, combined with theoretical calculations, provide an interesting new perspective on the Boekelheide–Fedoruk ring expansions.
