27979-45-9

Basic information

• Product Name: 1H-2-Benzopyran-3-carboxylic acid, 3,4-dihydro-3-methyl-1-oxo-, methyl ester
• CAS NO: 27979-45-9
• Molecular Formula: C12H12O4
• Molecular Weight: 220.225
• Mol File: 27979-45-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 1H-2-Benzopyran-3-carboxylic acid, 3,4-dihydro-3-methyl-1-oxo-, methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-2-Benzopyran-3-carboxylic acid, 3,4-dihydro-3-methyl-1-oxo-, methyl ester(27979-45-9)
• EPA Substance Registry System: 1H-2-Benzopyran-3-carboxylic acid, 3,4-dihydro-3-methyl-1-oxo-, methyl ester(27979-45-9)

Safety Data

• Hazardous Substances Data: 27979-45-9(Hazardous Substances Data)

Upstream product

• 80-62-6 methacrylic acid methyl ester 
• 600-22-6 pyruvic acid methyl ester 
• 3469-06-5 benzocyclobutenone 

Relevant articles and documents

Photocatalyzed synthesis of isochromanones and isobenzofuranones under batch and flow conditions

Photocatalyzed reactions of 2-(alkoxycarbonyl)benzenediazonium tetrafluoroborates with various alkenes afforded isochromanones in good yields, according to a mechanism that was investigated. The advantage of using highly soluble esters rather than carboxylic acids as starting compounds became evident when the reactions were performed under flow conditions. On the other hand, when 2-vinylbenzoic acid derivatives were employed as reagents, isobenzofuranones were obtained together with unprecedented benzo[e][1,3]oxazepin-1(5H)-ones, with the latter derived from incorporation of the solvent (acetonitrile).