Pyridinium salts—versatile reagents for the regioselective synthesis of functionalized thiazocino[2,3-b]indoles by tandem dinucleophilic reactions of thiooxindoles
作者:Mostafa Kiamehr、Firouz Matloubi Moghaddam、Pavel V. Gormay、Volodymyr Semeniuchenko、Alexander Villinger、Peter Langer、Viktor O. Iaroshenko
DOI:10.1016/j.tet.2012.09.059
日期:2012.11
The reaction of thiooxindoles with various 2- and 3-substituted pyridinium salts afforded a variety of functionalized thiazocinoindoles. The products have been prepared in good to excellent yields by regioselective dinucleophilic C/S-cyclocondensation of thiooxindoles with pyridinium salts.
硫代吲哚与各种2和3取代的吡啶鎓盐的反应提供了各种官能化的噻唑并吲哚。通过硫代吲哚与吡啶鎓盐的区域选择性二亲核C / S-环缩合,可以高至极好的收率制备产物。