Collect. Czech. Chem. Commun. 2005, 70, 34-40

New Nitrogen-Rich Tripodal Molecules Based on Bis(pyrazol-1-ylmethyl)amines with Substituents Modulating Steric Hindrances and Electron Density of Donor Sites

Stefania Garbacia, Caroline Hillairet, Rachid Touzani and Olivier Lavastre*

Institut de Chimie, UMR 6509 CNRS-Université de Rennes 1. CITRennes, Campus de Beaulieu 35042 Rennes Cedex, France


Eight new substituted bis(pyrazol-1-ylmethyl)amines have been prepared in one step condensation of 1-(hydroxymethyl)-3,5-disubstituted pyrazoles with a series of primary amines. The effect of substituents of divers bulkiness and electron donor/acceptor power that have been introduced to these tridentate molecules is visualised by 1H NMR spectroscopy.

Keywords: Pyrazole; Tridentate ligands; Parallel synthesis; Symmetrical ligand.

References: 24 live references.