BENZOTRIAZOLE-1-CARBONYL CHLORIDE TECH. Chemical Properties

Melting point:

51-55 °C(lit.)

Flash point:

>230 °F

Safety Information

Hazard Codes 

C

Risk Statements 

22-34

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3131 4.3/PG 2

WGK Germany 

3

BENZOTRIAZOLE-1-CARBONYL CHLORIDE TECH. Usage And Synthesis

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.

BENZOTRIAZOLE-1-CARBONYL CHLORIDE TECH.(65095-13-8)Related Product Information

• 1-(CHLOROMETHYL)-1H-BENZOTRIAZOLE
• BENZOTRIAZOLE-1-CARBONYL CHLORIDE TECH.