Competing Diels-Alder reactions of activated nitroethylene derivatives and [3,3]-sigmatropic rearrangements of the cycloadducts.
Diels-Alder reaction of nitroethylene derivatives with cyclohexa-1,3-diene afforded three pericyclic products some of which could be converted to others via a new [3,3]-sigmatropic rearrangement or via a Claisen rearrangement.
Wade
Peter A
PA
Department of Chemistry, Drexel University, Philadelphia, PA 19104, USA.
Murray
James K
JK
Shah-Patel
Sharmila
S
Le
Hung T
HT