Microwave-Assisted Stille Reactions as a Powerful Tool for Building Polyheteroaryl Systems Bearing a (1H)-1,2,4-Triazole Moiety
作者:P. Prieto、A. Díaz-Ortiz、C. Cebrián、A. de Cózar、A. de la Hoz、J. Carrillo、A. Rodriguez、F. Montilla
DOI:10.1055/s-0029-1218533
日期:2010.1
Stille couplings and the combination of Stille/Heck cross-couplingreactions provide useful access to tricyclic systems with valuable material properties from 3,5-dibromo-1,2,4-triazoles. The reactions can all be dramatically improved undermicrowaveirradiation.
Iodine-mediated C–N and N–N bond formation: a facile one-pot synthetic approach to 1,2,3-triazoles under metal-free and azide-free conditions
作者:Geeta Sai Mani、Kavitha Donthiboina、Siddiq Pasha Shaik、Nagula Shankaraiah、Ahmed Kamal
DOI:10.1039/c9ra06005g
日期:——
A novel strategy towards the synthesis of 1,4-disubstituted1,2,3-triazoles via C–N and N–N bond formation has been demonstrated under transition metal-free and azide-free conditions. These 1,2,3-triazoles were obtained in a regioselective manner from commercially available anilines, aryl alkenes/aryl alkynes and N-tosylhydrazines using I2 under O2 atmosphere. Broad substrate scope, milder reaction