73150-79-5

Basic information

• Product Name: 2-PHENYL-1,2,4-TRIAZASPIRO[4.5]DECAN-3-ONE
• Synonyms: 2-PHENYL-1,2,4-TRIAZASPIRO[4.5]DECAN-3-ONE
• CAS NO: 73150-79-5
• Molecular Formula: C₁₃H₁₇N₃O
• Molecular Weight: 231.29
• Mol File: 73150-79-5.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2-PHENYL-1,2,4-TRIAZASPIRO[4.5]DECAN-3-ONE(CAS DataBase Reference)
• NIST Chemistry Reference: 2-PHENYL-1,2,4-TRIAZASPIRO[4.5]DECAN-3-ONE(73150-79-5)
• EPA Substance Registry System: 2-PHENYL-1,2,4-TRIAZASPIRO[4.5]DECAN-3-ONE(73150-79-5)

Safety Data

• Hazardous Substances Data: 73150-79-5(Hazardous Substances Data)

Usage

Synthesis Reference(s)

Synthesis, p. 808, 1990 DOI: 10.1055/s-1990-27022

Upstream product

• 108-94-1 cyclohexanone 
• 100-63-0 phenylhydrazine 
• 590-28-3 potassium cyanate 
• 946-82-7 cyclohexanone phenylhydrazone 

Downstream Products

• 131366-16-0 3-Phenyl-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[1,5-a]azepin-2-one 
• 18440-35-2 1-Phenylazo-cyclohexylisocyanat 

Relevant articles and documents

Rearrangement of 3,3-Disubstituted 1-Aryl-4,5-dihydro-5-oxo-3H-1,2,4-triazolium Tetrafluoroborates; Part 2. A Convenient Synthesis of 1,5-Annulated 1,2-Dihydro-2-phenyl-3H-1,2,4-triazol-3-ones

1-Isocyanato-1-(phenylazo)cycloalkanes 3 react with tetrafluoroboric acid to yield 3-spiro substituted 4,5-dihydro-5-oxo-1-phenyl-3H-1,2,4-triazolium tetrafluoroborates 4.Compounds 4 rearrange with ring expansion in good yield to give, after basic workup,