Direct Thioamination of Arynes via Reaction with Sulfilimines and Migratory N-Arylation
摘要:
A novel method for preparing a diverse range of o-sulfanylanilines is described. Direct thioamination of arynes with sulfilimines gives o-sulfanylanilines, involving C-N and C-S bond formations and migratory N-arylation.
takes place using various o-iodoaryl triflates and sulfilimines. The selective migration realizes the facile synthesis of a broad range of highly functionalized o-thioaminated diaryl sulfides. We succeeded in the ring expansion of cyclic sulfilimines enabling us to prepare eight- and nine-membered organosulfurs from dibenzothiophene- and thianthrene-type sulfilimines, respectively.