20633-40-3

Basic information

• Product Name: methyl 4-benzoyl-4-methylvalerate
• Synonyms: methyl 4-benzoyl-4-methylvalerate
• CAS NO: 20633-40-3
• Molecular Weight: 234.295
• Mol File: 20633-40-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: methyl 4-benzoyl-4-methylvalerate(CAS DataBase Reference)
• NIST Chemistry Reference: methyl 4-benzoyl-4-methylvalerate(20633-40-3)
• EPA Substance Registry System: methyl 4-benzoyl-4-methylvalerate(20633-40-3)

Safety Data

• Hazardous Substances Data: 20633-40-3(Hazardous Substances Data)

Upstream product

• 100511-35-1 methyl 2-benzoyl-4-methylvalerate 
• 3395-91-3 Methyl 3-bromopropionate 
• 611-70-1 phenyl isopropyl ketone 

Downstream Products

• 62894-04-6 phenyl prenyl ketone 
• 2938-68-3 4,4-dimethyl-5-oxo-5-phenylpentanoic acid 

Relevant articles and documents

TYPE II PHOTOREACTIONS OF α-ALKYL β-OXOESTERS. NEIGHBORING GROUP EFFECT ON 1,4-BIRADICAL REACTIONS AND EFFECTIVE INTERNAL FILTER EFFECT BY THE TYPE II PHOTOPRODUCT

The α-alkyl β-oxoesters 1 undergo type II photoreactions.The process of back hydrogen transfer in the 1,4-biradical intermediate to revert to the starting ester is suppressed because of the intramolecular hydrogen bonding between the hydroxyl and carboalkoxyl groups in the biradical intermediate.The hydrogen bonding determines the stereochemistry of 1,4-biradical cyclization.The cyclobutanols having the hydroxyl group cis to the carboalkoxyl group are formed exclusively from the α-alkyl β-oxoesters 1.The enol form of the type II elimination product, the benzoylacetate 2, acts as an effective internal filter for the photoreaction of the α-alkyl β-oxoester 1.