1,5-Diazabicyclo[4.3.0]non-5-ene

• Catalog No.: A13437
• CAS Number: 3001-72-7
• M. F.: C7H12N2
• M. W.: 124.18358
• Purity: 98%

SYNONYMS

• Title: 1,5-二氮双环[4.3.0]壬-5-烯
• IUPAC name: 2H,3H,4H,6H,7H,8H-pyrrolo[1,2-a]pyrimidine
• IUPAC Traditional name: DBN
• Synonyms: DBN

DATABASE IDS

• CAS Number: 3001-72-7
• Beilstein Number: 2417
• EC Number: 221-087-3
• MDL Number: MFCD00005554

PROPERTIES

• Purity: 98%
• Boiling Point: 95-98°C/7mm
• Density: 1.042
• Flash Point: 94°C(201°F)
• Refractive Index: 1.5200
• GHS Hazard statements: H314-H318
• European Hazard Symbols: Corrosive (C)
• GHS Precautionary statements: P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501A
• Risk Statements: 34
• Safety Statements: 26-36/37/39-45
• Storage Warning: Air Sensitive & Hygroscopic
• TSCA Listed: 否
• Hazard Class: 8
• UN Number: UN3267
• Packing Group: II

REFERENCES

• 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).
• 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).