132525-43-0

Basic information

• Product Name: C₁₉H₁₄BrN₃O₂
• CAS NO: 132525-43-0
• Molecular Weight: 396.243
• Mol File: 132525-43-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₁₉H₁₄BrN₃O₂(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₉H₁₄BrN₃O₂(132525-43-0)
• EPA Substance Registry System: C₁₉H₁₄BrN₃O₂(132525-43-0)

Safety Data

• Hazardous Substances Data: 132525-43-0(Hazardous Substances Data)

Upstream product

• 90408-20-1 4-bromophenyl 2-aminobenzoate 
• 62-53-3 aniline 
• 118-48-9 isatoic anhydride 
• 106-41-2 4-bromo-phenol 

Relevant articles and documents

SYNTHESIS, KINETICS AND MECHANISM OF CYCLIZATION OF 1-(2-ARYLOXYCARBONYLPHENYL)-3-PHENYLTRIAZENES

Twelve substituted 1-(2-aryloxycarbonylphenyl)-3-phenyltriazenes have been synthetized and kinetics of their reactions have been measured in 52.1percent (by mass) aqueous methanol at pH 3 to 11.Plots of kobs vs pH show three regions: noncatalyzed cyclization (pH 4 to 7), acid-catalyzed splitting of the triazene chain, and base-catalyzed cyclization.The non-catalyzed cyclization exhibits a kinetic isotope effect, the reaction constant Q = 2.69 (?p-), and β1g = 1.02, which indicates a mechanism of E1cB type with intramolecular proton transfer and a transient formation of a ketene intermediate.The base-catalyzed cyclization, on the other hand, exhibits the reaction constant Q = 1.05 (?p-), β1g = 0.4, and distinct steric effects, which indicates a cyclization by BAc2 mechanism with rate-limiting formation of the tetrahedral intermediate.