81467-52-9

Basic information

• Product Name: C₁₁H₁₁N₃O₅
• Synonyms: C₁₁H₁₁N₃O₅
• CAS NO: 81467-52-9
• Molecular Weight: 265.225
• Mol File: 81467-52-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₁₁H₁₁N₃O₅(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₁H₁₁N₃O₅(81467-52-9)
• EPA Substance Registry System: C₁₁H₁₁N₃O₅(81467-52-9)

Safety Data

• Hazardous Substances Data: 81467-52-9(Hazardous Substances Data)

Upstream product

• 674-82-8 4-methyleneoxetan-2-one 
• 192332-48-2 (Z)-4-nitrobenzamidoxime 

Downstream Products

• 24794-09-0 1-[3-(4-nitro-phenyl)-[1,2,4]oxadiazol-5-yl]-propan-2-one 

Relevant articles and documents

Cyclization of O-Acetoacetylbenzamide Oxime Derivatives

O-Acetoacetylbenzamide oxime derivatives (2) were prepared from benzamide oxime derivatives (1) and diketene at low temperature in almost quantitative yields.Cyclization of 2 in the presence of a strong base proceeded with elimination of acetone to afford 3-aryl-1,2,4-oxadiazolin-5-one derivatives (4) in 77-95percent yields.However, in the cases of the o-, m-, and p-nitrobenzamide oxime derivatives (2f-h), the reaction proceeded with dehydration even in the presence of a strong base to afford 5-acetonyl-3-aryl-1,2,4-oxadiazole derivatives (3f-h) in moderate yields.Possible mechanisms of these cyclization are discussed.