Abstract
A series of tridentate ligands
N,
N-bis-[(di-substituted-1-pyrazolyl)methyl]arylamines
2–
3a,
b
and benzylamine
4a,
b
, tetradentate
N,
N′-bis-[(di-substituted-1-pyrazolyl)methyl]
para-phenylenediamines
7a,
b
and hexadentate
N,
N,
N′,
N′-tetra-[(di-substituted-1-pyrazolyl)methyl]
para-phenylenediamines
8a,
b
has been prepared in good yield by condensation of arylamines, benzylamine or
para-phenylenediamine with
N-hydroxymethyl disubstituted pyrazoles
1a,
b
. The synthesis and characterisation of these various polydentate ligands are described.
Graphical Abstract