26213-82-1

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 7-methoxy-2-methyl-
• CAS NO: 26213-82-1
• Molecular Formula: C11H10O3
• Molecular Weight: 190.199
• Mol File: 26213-82-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 7-methoxy-2-methyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 7-methoxy-2-methyl-(26213-82-1)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 7-methoxy-2-methyl-(26213-82-1)

Safety Data

• Hazardous Substances Data: 26213-82-1(Hazardous Substances Data)

Upstream product

• 78812-98-3 1-(2-acetoxy-4-methoxyphenyl)vinyl acetate 

Downstream Products

• 76361-67-6 7-methoxy-2-[(1E)-2-phenylethenyl]-4H-1-benzopyran-4-one 
• 76361-69-8 7-methoxy-2-[(1E)-2-(4-methoxyphenyl)ethenyl]-4H-1-benzopyran-4-one 
• 101450-93-5 7-methoxy-2-methyl-chromen-4-one-(2,4-dinitro-phenylhydrazone) 
• 1382529-10-3 7-methoxy-2-[2-(4-trifluoromethoxyphenyl)vinyl]chromen-4-one 
• 1401428-08-7 (E)-7-hydroxy-2-(3,4,5-trihydroxystyryl)-4H-chromen-4-one 
• 1401428-03-2 (E)-7-methoxy-2-(3,4,5-trimethoxystyryl)-4H-chromen-4-one 
• 20800-24-2 1-(2-hydroxy-4-methoxyphenyl)butan-1-one 
• 552-41-0 1-(2-hydroxy-4-methoxyphenyl)ethanone 

Relevant articles and documents

Photolysis of Enol Acetates and α-Bromo Derivatives of o-(Acyloxy)acetophenones

UV irradiation of enol acetates 3a-g in benzene gives mainly o-(acetoxy)acetophenones 2 and 2-methylchromones 4. Under the same conditions, the dimethyl derivatives 3h and 3i remain unaffected.The α-bromo ketone 5a gives rise to mixtures of o-(acetoxy)acetophenone (2a), the diketone 6, and/or α-acetoxy-o-hydroxyacetophenone (7), depending on the irradiation conditions.The similarities and differences between the two series of experiments, as well as their possible mechanistic implications, are discussed.