83813-97-2

Basic information

• Product Name: 2,4,5-TRIMETHOXYBENZOIC ANHYDRIDE
• Synonyms: 2,4,5-TRIMETHOXYBENZOIC ANHYDRIDE
• CAS NO: 83813-97-2
• Molecular Formula: C₂₀H₂₂O₉
• Molecular Weight: 0
• Mol File: 83813-97-2.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2,4,5-TRIMETHOXYBENZOIC ANHYDRIDE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4,5-TRIMETHOXYBENZOIC ANHYDRIDE(83813-97-2)
• EPA Substance Registry System: 2,4,5-TRIMETHOXYBENZOIC ANHYDRIDE(83813-97-2)

Safety Data

• Hazardous Substances Data: 83813-97-2(Hazardous Substances Data)

Upstream product

• 42833-66-9 2,4,5-trimethoxybenzoyl chloride 
• 490-64-2 asaronic acid 

Downstream Products

• 78368-30-6 5,6-dihydroxy-3,7,2',4',5'-pentamethoxyflavone 
• 34318-24-6 3,5,6,7,2',4',5'-heptamethoxyflavone 
• 85950-52-3 6-hydroxy-3,5,7,2',4',5'-hexamethoxyflavone 
• 852247-39-3 5,7-dihydroxy-3-methoxy-2-(2,4,5-trimethoxy-phenyl)-chromen-4-one 
• 2033-89-8 3,4-dimethoxyphenol 
• 113744-04-0 5,7-dihydroxy-3,6,8,2',4',5'-hexamethoxyflavone 

Relevant articles and documents

Effects of flavonoids on cell proliferation and caspase activation in a human colonic cell line HT29: An SAR study

A library of 42 natural and synthetic flavonoids has been screened for their effect on cell proliferation and apoptosis in a human colonic cell line (HT-29). Examples of different classes of flavonoids have been screened, and the effects of hydroxylation, methoxylation and/or C-alkylation at various positions in the A- and B-rings have been assessed. Flavones and flavonols possess greater antiproliferative activity than chalcones and flavanones. With respect to structural modification of flavonoids, C-isoprenylation was by far the most effective, with substitution at the 8-position and longer chains, such as geranyl giving the best results. Finally, most compounds that significantly reduced cell survival also increased caspase activity, suggesting that at least part of their antiproliferative activity might be attributable to an apoptotic response.

An Unusual O-Methylation in the Allan-Robinson Synthesis of Purpurascenin, a 3,5,6,7,8,2',4',5'-Octamethoxyflavone

In the Allan-Robinson synthesis of 3,5,6,7,8,2',4',5'-octamethoxyflavone (Purpurascenin, I), from 2,4,6-trihydroxy-3,5,ω-trimethoxyacetophenone (IV) and asarylic anhydride, the expected intermediate, 5,7-dihydroxy-3,6,8,2',4',5'-hexamethoxyflavone (III) unusually gets further methylated to give 5-hydroxy-3,6,7,8,2',4',5'-heptamethoxyflavone (II) during the course of reaction.The possible mechanism of methylation is discussed.