Substance
ID:716344
Names and Identifiers
IUPAC name
2H,3H,4H,6H,7H,8H-pyrrolo[1,2-a]pyrimidine
IUPAC Traditional name
DBN
Synonyms
DBN1,5-Diazabicyclo[4.3.0]non-5-ene1,5-二氮双环[4.3.0]壬-5-烯
Properties
Safety Information
Risk Statements
34
Packing Group
II
European Hazard Symbols
Corrosive (C)GHS Precautionary statements
P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501A
Storage Warning
Air Sensitive & Hygroscopic
Hazard Class
8
GHS Pictograms
Corrosive to metals, category 1
Skin corrosion, categories 1A,1B,1C
Serious eye damage, category 1
GHS Hazard statements
H314-H318
Safety Statements
26-36/37/39-45
TSCA Listed
否
UN Number
UN3267
Physical Property
Boiling Point
95-98°C/7mm
Density
1.042
Flash Point
94°C(201°F)
Refractive Index
1.5200
Product Information
Purity
98%
Molecule Details
No Data Available
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Molecular Spectra
No Data Available
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References
• For use of DBN in the aldol condensation, see: J. Am. Chem. Soc., 90, 3245 (1968). For esterification of thermally unstable carboxylic acids with diethyl sulfate at ambient temperature, see: Synth. Commun., 6, 89 (1976). For use in the alkylation of thiols with dihalomethanes, see: Synthesis, 952 (1980). In refluxing xylene, DBN and DBU cleave hindered esters, e.g. mesitoates, by alkyl-oxygen cleavage: Tetrahedron Lett., 3987 (1972); J. Org. Chem., 38, 1223 (1973).
• The bicyclic amidines, DBN and DBU are strong organic bases initially introduced as reagents for dehydrohalogenation in vitamin A synthesis: Chem. Ber., 99, 2012 (1966).