31349-66-3Relevant articles and documents
Facile synthesis of 5-To 7-membered benzolactam compounds via strongly facilitated electrophilic aromtic substitution reaction
Kurouchi, Hiroaki,Otani, Yuko,Ohwada, Tomohiko
, p. 705 - 713 (2017/04/10)
We employed our system to activate aromatic ring-Tethered carbamate compounds with trifluoromethanesulfonic acid to obtain benzolactams with 5-To 7-membered rings, and examined the substrate scope and limitations of this activation method. In 5-membered ring formation, a halogen group on the aromatic ring did not greatly affect the reaction yield, but other electron-donating groups inhibited the cyclization reaction, and various side-reactions occurred. In 7-membered ring formation, eletron-donating groups on aromatic ring promoted the cyclization reaction, but cyclization of electron-deficient aromatic rings did not proceed well. The 6-membered ring formation reaction showed the greatest substrate generality.