Triethylenediamine

Details:

Triethylenediamine has a tertiary amine compound with  two-heterocyclic structure

,it is mainly used as a gel catalyst for polyurethane foam, widely used in soft, semi-rigid, rigid polyurethane foams, elastomers, in addition, the epoxy resin can also be used as a curing catalyst, an ethylene polymerization catalyst, the polymerization catalyst of acrylonitrile and ethylene polymerization catalyst alkane, piperidine and other pesticide production initiators and a kind of hydrogen-free plating additive.
In all kinds of tertiary amine catalysts, triethylenediamine belongs to the most important species, widely used in a variety of polyurethane foams (including soft, semi-rigid, rigid polyurethane foams, microcellular elastomers), coatings, elastomers. In the one-shot foaming process, the importance of triethylenediamine seems more obvious. At first because of its high activity, the amount is small; followed by its gel and blow reactions is a strong catalytic effect, particularly for catalysis of polyurethane with a hydroxyl group (urethane formation reaction, gel reaction) more selective.
DABCO has been used as a catalyst for a metal-free Sonogashira coupling, with or without microwave enhancement. For example,phenylacetylene couples with electron-deficient iodoarenes to furnish the Sonogashira product in 77% yield with 95% selectivity.


【Name】

Triethylenediamine
【CAS】

280-57-9
【Synonyms】

1,4-DIAZABICYCLO[2.2.2]OCTANE
2,2'-Diazabicyclo[2.2.2]octane
DABCO
DABCO(TM)
DABCO(TM) 33-LV
LUPRAGEN(R) N 201
LUPRAGEN(R) N 202
LUPRAGEN(R) N 203
TED
TRIETHYLENEDIAMINE
1,4-Diaza[2.2.2]bicyclooctane
1,4-diazabicyclooctane
1,4-Diazobicyclo(2.2.2)octane
1,4-diazobicyclo[2.2.2]octane
1,4-Ethylenepiperazine
Bicyclo(2,2,2)-1,4-diazaoctane
bicyclo(2.2.2)-1,4-diazaoctane
Bicyclo[2.2.2]-1,4-diazaoctane
Bicyclo[2.2.2]octane, 1,4-diaza-
【EINECS(EC#)】

205-999-9
【Molecular Formula】

C6H12N2
【Molecular Weight】

112.17
【Appearance】

white crystalline powder
【mp 】

156-159 °C(lit.)

【bp 】

174 °C
【density 】

1.02 g/mL

【vapor pressure 】

2.9 mm Hg ( 50 °C)

【refractive index 】

n20/D 1.4634(lit.)

【Fp 】

198 °F

【storage temp. 】

2-8°C

【Stability:】

Stable, but very hygroscopic. Incompatible with strong oxidizing agents, strong acids. Highly flammable.
【Water Solubility 】

46 g/100 mL (26 ºC)
【Sensitive 】

Hygroscopic