Thermal Aza-Bergman Cyclization ofo-Alkynylaryl Isocyanides with Organic Diselenide, Ditelluride, and Iodine Leading to 2,4-Difunctionalized Quinolines
Synthesis of 2,4-Diiodoquinolines via the Photochemical Cyclization of <i>o</i>-Alkynylaryl Isocyanides with Iodine
作者:Takenori Mitamura、Akiya Ogawa
DOI:10.1021/jo1021772
日期:2011.2.18
Upon photoirradiation of o-alkynylaryl isocyanides in the presence of iodine, the intramolecular cyclization of o-alkynylaryl isocyanides proceeds to afford the corresponding 2,4-diiodoquinolines in good yields. 2,4-Diiodoquinolines can be employed in transition metal-catalyzed cross-coupling reactions.