3-Amino-1,2,4-triazolium salts as NHC-proligands: synthesis and postmodification of a new type of amino-functionalized Pd/NHC complexes

Palladium complexes with N-heterocyclic carbene ligands of a new type containing free NH2 group were obtained by direct palladation of 3-amino-1,4-dialkyl-1,2,4-triazolium salts. These amino-functionalized complexes were found to be a versatile platform for postmodification via reactions of the NH2 group with acyl and sulfonyl chlorides.