One-Pot Diels-Alder Reaction of N-p-Tosylaldimines Generated by BF3-Et2O Catalyzed Transformation of Naphthodithiin-1-N-p-tosylsulfilimines

Article abstract of DOI:10.1016/0040-4039(95)00901-N

Naphtho<1,8-de>dithiin-1-N-p-tosylsulfilimines (4) were prepared by the reaction of naphtho<1,8-de>dithiin with chloramine-T.Treatment of 4 with dienes in the presence of BF3-Et2O afforded the imino Dields-Alder products via N-p-tosylaldimines produced in