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| CAS No.: | 622-37-7 |
|---|---|
| Name: | PHENYL AZIDE |
| Molecular Structure: | |
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| Formula: | C6H5 N3 |
| Molecular Weight: | 119.126 |
| Synonyms: | Azidobenzene;Benzene, triazo-; NSC 512574; Phenyl azide |
| Density: | 1.0860 |
| Melting Point: | -27.5°C |
| Boiling Point: | 212.39°C (rough estimate) |
| Flash Point: | -12°C |
| Hazard Symbols: | 742248 |
| Risk Codes: | 742248 |
| Safety: | Explodes when heated. Explosive or violent reactions with Lewis acids [e.g., aluminum chloride (explosive); sulfuric acid (violent)]. When heated to decomposition it emits toxic fumes of NOx. See also AZIDES. |
| PSA: | 49.75000 |
| LogP: | 2.08116 |
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Chemistry
IUPAC Name: Azidobenzene
Synonyms :Benzene, azido- ; Diazoaminobenzen ; Diazoaminobenzol ; p-Diazoaminobenzene
CAS NO:622-37-7
Molecular Formula of Phenyl azide (CAS NO.622-37-7) :C6H5N3
Molecular Weight of Phenyl azide (CAS NO.622-37-7) :119.12
Molecular Structure of Phenyl azide (CAS NO.622-37-7) :
EINECS:210-730-3
Uses
C6H5N3 is used to make heterocycles via cycloaddition to alkenes and especially alkynes, particularly those bearing electronegative substituents.
Production
Phenyl azide is prepared by the diazotization of phenylhydrazine with nitrous acid:
C6H5NHNH2 + HNO2 → C6H5N3 + 2 H2O
Safety Profile
Explodes when heated. Explosive or violent reactions with Lewis acids [e.g., aluminum chloride (explosive); sulfuric acid (violent)]. When heated to decomposition it emits toxic fumes of NOx. See also AZIDES
.A protective blast shield is needed during purification and handling. Distillation temperatures should be as low a possible. Organic Syntheses recommends 5mm Hg to give a boiling point of ''66–68 °C/21 mm. with a bath temperature of 70–75 °C.'' The pure substance may be stored in the dark, cold, and even then the shelf-life is only weeks.