Frontier-Controlled Pericyclic Reaction of Phencyclone with 1H-Azepine. Remarkably Accelerated Aromatic Cope Rearrangement of an Endo--? Cycloadduct

Article abstract of DOI:10.1021/jo01300a021

The endo-<4+2>-? cycloadducts of phencyclone derivatives and N-(ethoxycarbonyl)azepine were isolated and readily isomerized to anti-endo-<2+4>-? cycloadducts.The kinetics of the rearrangement of endo-<4+2>-? cycloadducts have been examined.The aromatic Co