Pentamethyldiethylenetriamine By Tianjin Zhongxin Chemtech Co., Ltd.

We are manufacturing and exporting huge range of Pentamethyldiethylenetriamine in Tianjin, China.

PMDTA, formally N,N,Na ,Na ,Na a -pentamethyldiethylenetriamine, is an organic compound with the formula [Me2NCH2CH2]2NMe (Me is CH3). PMDTA is a basic, bulky, and flexible, tridentate ligand that is a used in organolithium chemistry.
Synthesis
PMDTA is prepared by methylating diethylenetriamine with formaldehyde and formic acid.
[H2N(CH2)2]2NH + 5 CH2O + 5 HCO2H a [Me2NCH2CH2]2NMe + 5 CO2 + 5 H2O
Comparison with diethylenetriamine
Unlike diethylenetriamine, all three amines in PDMTA are tertiary. Both PMDTA and diethylenetriamine are tridentate ligands that form two five-membered chelate rings. The I -donating properties of the amino groups of diethylenetriamine are greater than that of PMDTA in copper(II) complexes. Both ligands can coordinate metal complexes in arrangements where the three nitrogen centers are co-planar or mutually cis.

a Namea
Pentamethyldiethylenetriamine
a CASa
3030-47-5
a Synonymsa
1,1,4,7,7-PENTAMETHYLDIETHYLENETRIAMINE
Bis(2-dimethylaminoethyl)methylamine
METHYLBIS(2-DIMETHYLAMINOETHYL)-AMINE
PENTAMETHYLDIETHYLENETRIAMINE
PMDETA
PMDTA
pmdt
1,2-Ethanediamine, N-2-(dimethylamino)ethyl-N,N,N-trimethyl-
1,1,4,7,7-Pentamethyldiethylentriamin
a EINECSa
221-201-1
a Molecular Formulaa
C9H23N3
a Molecular Weighta
173.3
a Appearancea
colourless liquid with an amine odour
a mp a
a 20 A C(lit.)
a bp a
198 A C(lit.)
a density a
0.83 g/mL at 25 A C(lit.)
a vapor pressure