Keywords
azido-Ugi reaction
copper complexes
isocyanides
ligands
Palladium complexes
pyrazolines
tetrazoles
Abstract
A new family of ligands containing fragments of tetrazole and pyrazoline was prepared in one step by the efficient azido-Ugi reaction of N-(arylidene)pyrazolinium salts with isocyanides and sodium azide in up to 86% yield. The utility of the ligands was demonstrated by the synthesis of coordination complexes with Cu and Pd.
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