81592-51-0

Basic information

• Product Name: Trifluoro-methanesulfonate3-methyl-2-(4-nitro-phenyl)-4,5-dihydro-oxazol-3-ium;
• CAS NO: 81592-51-0
• Molecular Weight: 356.279
• Mol File: 81592-51-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Trifluoro-methanesulfonate3-methyl-2-(4-nitro-phenyl)-4,5-dihydro-oxazol-3-ium;(CAS DataBase Reference)
• NIST Chemistry Reference: Trifluoro-methanesulfonate3-methyl-2-(4-nitro-phenyl)-4,5-dihydro-oxazol-3-ium;(81592-51-0)
• EPA Substance Registry System: Trifluoro-methanesulfonate3-methyl-2-(4-nitro-phenyl)-4,5-dihydro-oxazol-3-ium;(81592-51-0)

Safety Data

• Hazardous Substances Data: 81592-51-0(Hazardous Substances Data)

Upstream product

• 7465-63-6 2-(4-Nitrophenyl)-4,5-dihydrooxazole 
• 333-27-7 methyl trifluoromethanesulfonate 

Downstream Products

• 90776-77-5 4-Methyl-5-(4-nitro-phenyl)-7-oxo-2,3,4,7-tetrahydro-[1,4]oxazepine-6-carbonitrile 

Relevant articles and documents

CONDENSATION DU CYANOACETATE D'ETHYLE SODE SUR LES SELS D'IMINOETHERS CYCLIQUES. SYNTHESE DIRECTE DE DERIVES D'OXAZEPINE-1,4 ONE-7

Sodium ethylcyanoacetate was found to react exclusively at the 2-position of trifluormethanesulfonate 2-alkyl(aryl) 1,3-oxazolinium salts 2.In most cases, the reaction leads specifically to a new series of 5-alkyl(aryl) 6-cyano 2,3-dihydro 1,4-oxazepine 7-ones 3.This efficient one-step ring-enlargement process occurs at the oxazolidin stage.Structural parameters affecting the scope and limitations of this condensation are discussed.