26200-06-6

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 2,3-dihydro-5,7-dimethoxy-3-phenyl-
• CAS NO: 26200-06-6
• Molecular Formula: C17H16O4
• Molecular Weight: 284.312
• Mol File: 26200-06-6.mol
• Article Data: 8

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 2,3-dihydro-5,7-dimethoxy-3-phenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 2,3-dihydro-5,7-dimethoxy-3-phenyl-(26200-06-6)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 2,3-dihydro-5,7-dimethoxy-3-phenyl-(26200-06-6)

Safety Data

• Hazardous Substances Data: 26200-06-6(Hazardous Substances Data)

Upstream product

• 26964-35-2 5,7-dimethoxyisoflavone 
• 50-00-0 formaldehyd 
• 39604-66-5 2-hydroxy-4,6-dimethoxyphenyl benzyl ketone 
• 104556-46-9 α-acetoxymethylbenzyl 2-hydroxy-4,6-dimethoxyphenyl ketone 
• 3188-13-4 ethyl chloromethyl ether 
• 124039-99-2 α-methylenebenzyl 2-ethoxymethoxy-4,6-dimethoxyphenyl ketone 
• 153488-88-1 3-allyloxycarbonyl-5,7-dimethoxychroman-4-one 
• 3076-54-8 phenyllead(IV) triacetate 
• 54107-66-3 5,7-dimethoxy-4-chromanone 
• 153488-99-4 3-allyloxycarbonyl-5,7-dimethoxy-3-phenylchroman-4-one 
• 96682-31-4 α-hydroxymethylbenzyl 2-hydroxy-4,6-dimethoxyphenyl ketone 
• 75-11-6 diiodomethane 

Downstream Products

• 123743-03-3 5,7-Dimethoxyisoflavanone enol acetate 
• 50-00-0 formaldehyd 
• 39604-66-5 2-hydroxy-4,6-dimethoxyphenyl benzyl ketone 

Relevant articles and documents

Organolead-mediated Arylation of Allyl β-Ketoesters: A Selective Synthesis of Isoflavanones and Isoflavones

Arylation of A-ring substituted and unsabstituted 3-allyloxycarbonylchroman-4-ones with aryllead(IV) triacetates followed by selective catalytic deallyloxycarbonylation affords isoflavanones or isoflavones in high overall yields.The highest yield in the arylation step was observed in the reaction of 5,7-dimethoxychroman-4-one with the more hindered 2,4,6-trimethoxyphenyllead triacetate.

A New General Synthesis of Hydroxy- and Methoxy-isoflavones

A new general synthesis of hydroxy- (5e-h) and methoxy- (5e-d) isoflavones has been accomplished in overall yields of 47-73percent from the corresponding 2-hydroxydeoxybenzoins (1a-h).The first step involves reaction with appropriate amounts of ethoxymeth

SYNTHESIS OF METHOXYISOFLAVONONES FROM ARYLMETHYL o-HYDROXYARYL AND PARAFORMALDEHYDE

Paraformaldehyde reacts with benzyl o-hydroxyphenyl ketones in the presence of diethylamine in methanolic solution to afford isoflavanones in excellent yields.