Pyrazole and quinoxaline: synthesis and X-ray structural characterization of new tridentate (N,N,N) and bidentate (N,N or N,O) ligands

Abstract

Herein we report the synthesis of new tridentate (N,N,N) compounds 3-6 and bidentate (N,N or N,O) compounds 8-10 based on pyrazole moieties and quinoxaline, with the opportunity to change easily structure and substituents. These methods take advantage of the vast number of commercially available starting materials containing functional and aliphatic or aromatic amines. X-ray structures for two compounds were investigated.