59171-35-6

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 6-hydroxy-3,5,7-trimethoxy-2-[4-(phenylmethoxy)phenyl]-
• CAS NO: 59171-35-6
• Molecular Formula: C25H22O7
• Molecular Weight: 434.445
• Mol File: 59171-35-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 6-hydroxy-3,5,7-trimethoxy-2-[4-(phenylmethoxy)phenyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 6-hydroxy-3,5,7-trimethoxy-2-[4-(phenylmethoxy)phenyl]-(59171-35-6)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 6-hydroxy-3,5,7-trimethoxy-2-[4-(phenylmethoxy)phenyl]-(59171-35-6)

Safety Data

• Hazardous Substances Data: 59171-35-6(Hazardous Substances Data)

Upstream product

• 1486-49-3 p-(benzyloxy)benzoic acid anhydride 
• 14639-73-7 1-(3,6-dihydroxy-2,4-dimethoxy-phenyl)-2-methoxy-ethanone 

Relevant articles and documents

STUDIES OF THE SELECTIVE O-ALKYLATION AND DEALKYLATION OF FLAVONOIDS. XII. A NEW, CONVENIENT METHOD FOR SYNTHESIZING 3,5-DIHYDROXY-6,7-DIMETHOXYFLAVONES FROM 3,5,6,7-TETRAMETHOXYFLAVONES

The 5-methoxy group on 3,5,6,7-tetramethoxyflavones and the 3-methoxy group on 3,6,7-trimethoxy-5-tosyloxy-flavones were selectively cleaved with anhydrous aluminum bromide in acetonitrile under controlled conditions without the cleavage of benzyloxy groups on the B ring.By the application of these reactions, seven 3,5-dihydroxy-6,7-dimethoxyflavones were easily synthesized from the corresponding 3,5,6,7-tetramethoxyflavones which were synthesized from 3,6-dihydroxy-2,4ω-trimethoxycetophenone by means of the Allan-Robinson reaction followed by methylation.Keywords: Allan-Robinson reaction ; selective demethylation; 3,5,6,7-tetramethoxyflavone; 5-hydroxy-3,6,7-trimethoxyflavone; 6-hydroxy-3,5,7-trimethoxyflavone; 5-tosyloxyflavone; 5,6-dihydroxy-3,7-dimethoxyflavone; 3,5-dihydroxy-6,7-dimethoxyflavone, 3,5-diacetoxy-6,7-dimethoxyflavone