132993-29-4

Basic information

• Product Name: 4-methylacetophenone O-(chlorooxalyl)oxime
• Synonyms: 4-methylacetophenone O-(chlorooxalyl)oxime
• CAS NO: 132993-29-4
• Molecular Weight: 239.658
• Mol File: 132993-29-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-methylacetophenone O-(chlorooxalyl)oxime(CAS DataBase Reference)
• NIST Chemistry Reference: 4-methylacetophenone O-(chlorooxalyl)oxime(132993-29-4)
• EPA Substance Registry System: 4-methylacetophenone O-(chlorooxalyl)oxime(132993-29-4)

Safety Data

• Hazardous Substances Data: 132993-29-4(Hazardous Substances Data)

Upstream product

• 79-37-8 oxalyl dichloride 
• 2089-33-0 4-methylacethophenone oxime 

Relevant articles and documents

Preparation and Beckmann rearrangement of O-(chlorooxalyl)oximes

Oximes 1 react with phosgene or oxalyl chloride to give O-(chloroformyl)- 2, or O-(chlorooxalyl)oximes 8, which undergo Beckmann rearrangement with antimony pentachloride to afford nitrilium hexachloroantimonates 3 in high yields. With di- or triphosgene (4 of 6) oximes 1 form mixtures of O-(chloroformyl)-2 and O-(trichloromethoxyformyl)oximes 5. The O-(chlorooxalyl)oximes 8 are further characterized as esters 10 and amides 11. With N,N-dimethylformamide the nitrilium salts 3 react to give N-acyl formamidinium salts 12.