97424-76-5

Basic information

• Product Name: Cyclopentanecarbonyl chloride, 3-chloro-1,3-dimethyl-2-oxo-, trans- (9CI)
• Synonyms: Cyclopentanecarbonyl chloride, 3-chloro-1,3-dimethyl-2-oxo-, trans- (9CI)
• CAS NO: 97424-76-5
• Molecular Formula: C8H10Cl2O2
• Molecular Weight: 209.0698
• Product Categories: ACIDHALIDE
• Mol File: 97424-76-5.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Cyclopentanecarbonyl chloride, 3-chloro-1,3-dimethyl-2-oxo-, trans- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: Cyclopentanecarbonyl chloride, 3-chloro-1,3-dimethyl-2-oxo-, trans- (9CI)(97424-76-5)
• EPA Substance Registry System: Cyclopentanecarbonyl chloride, 3-chloro-1,3-dimethyl-2-oxo-, trans- (9CI)(97424-76-5)

Safety Data

• Hazardous Substances Data: 97424-76-5(Hazardous Substances Data)

Upstream product

• 920-46-7 Methacryloyl chloride 

Relevant articles and documents

Methacryloyl chloride dimers: From structure elucidation to a manifold of chemical transformations

We report the isolation and elucidation of structure, formation mechanisms, and reactivity of elusive methacryloyl chloride dimers. Upon standing of a sample of methacryloyl chloride (1) for prolonged periods of time dimer 3 forms via oxa-Diels-Alder reaction even at low temperatures. If traces of a Lewis acid are present, dimer 3 isomerizes into a mixture of 2-oxo-cyclopentanecarbonyl chlorides 4, 14, and traces of 5, with a relative ratio that depends on the nature of the Lewis acid and reaction time. Dimer 3 can also be separated and isolated by vacuum distillation and selectively converted into derivatives of 2,5-dimethyl-2-hydroxyadipic acid, as well as into the compound 14 by treating with a catalytic amount of titanium tetrachloride. Additionally, based on the study, suggestions on purification and handling of methacryloyl chloride are proposed.