113344-30-2

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 2-methyl-3-(phenylmethyl)-
• CAS NO: 113344-30-2
• Molecular Formula: C17H14O2
• Molecular Weight: 250.297
• Mol File: 113344-30-2.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 2-methyl-3-(phenylmethyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 2-methyl-3-(phenylmethyl)-(113344-30-2)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 2-methyl-3-(phenylmethyl)-(113344-30-2)

Safety Data

• Hazardous Substances Data: 113344-30-2(Hazardous Substances Data)

Upstream product

• 129218-89-9 (Z)-1-acetoxy-1-(2-acetoxyphenyl)-3-phenylpropene 

Relevant articles and documents

Photolysis of 3-bromochroman-4-ones

Photolysis of 3-bromochroman-4-ones (1a-f) leads to debrominated chromanones (2a-f) and chromones (3a-f) as major products. Their formation is accounted for in terms of primary cleavage of the carbon halogen bond to give α-carbonyl radicals (I) and/or cations (II). In the case of the 2,2-disubstituted compounds (1d-f), intermediates (II) undergo rearrangement with 1,2-shift of the phenyl or benzyl substituent prior to deprotonation. Minor by-products are the pentacyclic pyrone (4e) or 2-methylchromone (3a) (starting from 1e and 1f, respectively).

A NOVEL PHOTOCHEMICAL 1,4-ACYL MIGRATION IN ENOL ESTERS. THE PHOTOLYSIS OF ENOL ACETATES OF 3-PHENYLPROPIOPHENONES

Photolysis of the enol acetates 1a, b gives the 1,4-diketones 4a, b by a mechanism involving a primary homolytic carbonyl-oxygen bond cleavage, followed by 1,2-hydrogen shift and in cage recombination.