127078

Sigma-Aldrich

N,N,N′,N′-Tetraethylethylenediamine

98%

Synonym(s):
TEEDA
Linear Formula:
(C2H5)2NCH2CH2N(C2H5)2
CAS Number:
Molecular Weight:
172.31
EC Number:
MDL number:
PubChem Substance ID:

assay

98%

refractive index

n20/D 1.4343 (lit.)

bp

189-192 °C (lit.)

density

0.808 g/mL at 25 °C (lit.)

SMILES string

CCN(CC)CCN(CC)CC

InChI

1S/C10H24N2/c1-5-11(6-2)9-10-12(7-3)8-4/h5-10H2,1-4H3

InChI key

DIHKMUNUGQVFES-UHFFFAOYSA-N

Application

N,N, N′,N′-Tetraethylethylenediamine (TEEDA) has been used in the synthesis of amine ligands using simple or double intramolecular dealkylation reaction. TEEDA exhibits selective β-lithiation during deprotonation with lithiumalkyls.

Packaging

10, 50 g in glass bottle

Pictograms

FlameCorrosion

Signal Word

Danger

Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

UN 2734PSN2 3(8) / PGII

WGK Germany

WGK 3

Flash Point(F)

138.2 °F - closed cup

Flash Point(C)

59 °C - closed cup

Viktoria H Gessner et al.
Journal of the American Chemical Society, 130(44), 14412-14413 (2008-10-10)
TMEDA and its ethyl-substituted analogue, TEEDA, show a different behavior toward the deprotonation with lithiumalkyls. While TMEDA mainly undergoes alpha-lithiation of its methyl group, TEEDA shows selective beta-lithiation with following elimination of ethene. The crystal structure of the monomeric intermediate...
M Esther Morilla et al.
Chemical communications (Cambridge, England), (17)(17), 1848-1849 (2002-09-26)
N,N, N',N'-Tetraethylethylenediamine undergoes simple or double intramolecular dealkylation reactions in the presence of the complexes [RuCl2(diene)]n (diene = cod, nbd) or trans-[RuCl2(diene)(morfoline)2 at 80 degrees C to afford chelating amine ligands which contains one or two N-H functionalities.
Lan-Fang Hu et al.
Molecules (Basel, Switzerland), 25(2) (2020-01-16)
The copolymerization of biorenewable succinic anhydride (SA) with propylene oxide (PO) is a promising way to synthesize biodegradable aliphatic polyesters. However, the catalytic systems for this reaction still deserve to be explored because the catalytic activity of the reported catalysts...
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Biochimica et biophysica acta. General subjects, 1862(8), 1760-1769 (2018-05-12)
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