DABCO

White solid

Fixed

1.14 g · cm -3

159.8 ° C

174 ° C (1013 hPa)

0.68 hPa ( 21 ° C)

450 g · l - 1 in water

Risk

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DABCO, and triethylenediamine (TEDA ), and 1.4 -diazabicyclo [2.2.2] octane, known as a bicyclic tertiary amine.

Physical Properties

TEDA is a white solid at room temperature, which melts at 159.8 ° C. It is readily soluble in water.

Production

TEDA is industrially produced by the reaction of ethylenediamine with ZSM - 5 zeolite catalysts:

Use

TEDA is used as a catalyst for the production of polyurethane plastics and as a labile ligand or a base, for example, in the Baylis-Hillman reaction.

Brand name

The abbreviation " DABCO " commonly used in the art is derived directly from the official IUPAC name 1,4- diazabicyclo [2.2.2 ] octane, and is a registered trademark of the chemical company Air Products & Chemicals for amine-based catalysts.