| Identification | Back Directory | [Name]
BENZOTRIAZOLE-1-CARBONYL CHLORIDE TECH. | [CAS]
65095-13-8 | [Synonyms]
1-Chlorocarbonylbenzotriazole
1H-Benzotriazole-1-carbonyl chloride
BENZOTRIAZOLE-1-CARBONYL CHLORIDE TECH.
1H-Benzotriazole-1-carbonyl chloride (9CI) | [Molecular Formula]
C7H4ClN3O | [MDL Number]
MFCD00969739 | [MOL File]
65095-13-8.mol | [Molecular Weight]
181.58 |
| Hazard Information | Back Directory | [Preparation]
Benzotriazole-1-carbonyl chloride tech is prepared by bubbling phosgene through a suspension of benzotriazole in toluene at 60 °C until a clear solution is obtained. Evaporation at reduced pressure gives (1) (99% yield); this crude material has mp 52-54 °C. Alternatively, an ethereal solution of benzotriazole may be added dropwise over 20 min to a 20% solution of phosgene in toluene (4 equiv); stirring until a clear solution is obtained followed by evaporation at reduced pressure gives 98% yield of (1) with mp 52 °C. |
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