Palladium-catalysed cross-coupling as a key step in the synthesis of pyridyl-benzamides, -benzylamines and -sulfonamides
作者:Charles R.K. Changunda、Adriaan E. Basson、Sandy F. van Vuuren、Amanda L. Rousseau、Moira L. Bode
DOI:10.1016/j.tet.2016.11.071
日期:2017.1
Novel N-, O- and S-substituted pyridyl-benzamides, -benzylamines and -sulfonamides were prepared by means of palladium-catalysed cross-coupling reactions. The synthetic approach, using Pd2(dba)3 as palladium source and rac-BINAP as supporting ligand, proved to be successful for CN, CO and CS cross-coupling reactions. One of the substrates underwent an unexpected nucleophilic aromatic substitution of