1,8-Diazabicyclo[5.4.0]undec-7-ene CAS 6674-22-2

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1,8-Diazabicyclo[5.4.0]undec-7-ene CAS 6674-22-2 Chemical Specification 

1,8-Diazabicyclo[5.4.0]undec-7-ene CAS 6674-22-2 Chemical Properties

Melting point -70 ° C
Boiling point 80-83 ° c0.6mmhg (lit.)
Density 1.019g/mlat20 ° C (lit.)
Vapor pressure 5.3mmhg (37.7 ° C)
Refractive index n20/d1.523
Flash point >230 ° f
Storage condition: store below + 30 ° C
Solubility
Form liquid
Acidity coefficient (PKA) 13.28 ± 0.20 (predicted)
Color clear colorless to light yellow
Odor unpleasant
PH value 12.8 (10g/l, H2O, 20 ℃)

1,8-Diazabicyclo[5.4.0]undec-7-ene CAS 6674-22-2 Application

This product is a catalyst used in the production of polyurethane and other chemicals, such as ammonia and dichloroethane react in its presence to produce piperazine. It is an excellent dehydrating agent, epoxy resin hardener, rust inhibitor, and can also be used to prepare advanced corrosion inhibitor. At present, it is widely used in the production of cephalosporin semi synthetic antibiotics. It is also used in organic synthetic reactions and semi synthetic antibiotics.

Use 1, 8-diazabicycloundecano-7-ene (DBU) can be used as a catalyst for the production of polyurethane and other chemicals, such as ammonia and dichloroethane react in its presence to produce piperazine. It is an excellent dehydrating agent, epoxy resin hardener, rust inhibitor, and can be used to prepare advanced corrosion inhibitor. 

It is widely used in the production of cephalosporin semi synthetic antibiotics. Resin curing accelerator, especially for the outer sealing resin of integrated circuits and electronic components; Dehalogenation reaction, dimerization and trimer dehalogenation reaction; Desulfonic acid and nitric acid reaction in the polymerization process.

Use: amidine base for dehydrogenation and halogenation reaction to form olefins; More important applications are: esterification of carboxylic acids with alkyl halides; The alkylation and acylation of active methylene compounds are used in the manufacture of cephalosporin semi synthetic antibiotic drugs, as well as in the preparation of deacidifying agents, rust inhibitors, advanced corrosion inhibitors, etc