75413-07-9

Upstream product

• 186581-53-3 diazomethane 
• 122006-31-9 3,5-dihydroxy-6,7-dimethoxyflavone 
• 1371569-93-5 C₁₃H₁₆O₇ 
• 103393-09-5 3-hydroxy-5,6,7-trimethoxy-2-phenyl-4H-benzopyran-4-one 
• 74-88-4 methyl iodide 
• 642-71-7 3,4,5-trimethoxyphenol 
• 5798-79-8 bromo-phenyl-acetonitrile 
• 1371569-94-6 C₂₁H₂₁NO₇ 
• 66074-94-0 5,6,7-trimethoxyflavanone 
• 14639-73-7 1-(3,6-dihydroxy-2,4-dimethoxy-phenyl)-2-methoxy-ethanone 
• 14290-59-6 2-hydroxy-ω,4,5,6-tetramethoxyacetophenone 
• 93-97-0 benzoic acid anhydride 
• 84323-36-4 3,7-dihydroxy-5,6-dimethoxy-flavone 
• 73213-67-9 5,6-dihydroxy-3,7-dimethoxyflavone 

Relevant academic research and scientific papers

New approach to flavonols via base-mediated cyclization: Total synthesis of 3,5,6,7-tetramethoxyflavone

A new methodology for the synthesis of flavonols is described. The key step is a base-mediated cyclization-isomerization-elimination reaction which results in the formation of flavonols. Using this strategy, three flavonols are synthesized and characteriz

ANTIFUNGAL PHLOROGLUCINOL DERIVATIVES AND LIPOPHILIC FLAVONOIDS FROM HELICHRYSUM DECUMBENS

From the aerial parts of Helichrysum decumbens, three new antifungal phloroglucinol derivatives have been identified.Their structures have been established by UV, IR, EIMS, FAB-MS, 1H NMR and 13C NMR techniques.In addition, the highly methylated flavonoids 3,5-dihydroxy-6,7,8-trimethoxyflavone, 5,7-dihydroxy-3,6,8-trimethoxyflavone and 3,5-dihydroxy-6,7-dimethoxyflavone have been detected, the latter being a new naturally occurring compound.The phloroglucinols prevented the growth of Cladosporium herbarum in a bio-assay.These secondary metabolites are externally deposited on the plant surfaces. Key Word Index-Helichrysum decumbens; Compositae; prenylated phloroglucinols; antifungal compounds; lipophilic flavonoids; 3,5-dihydroxy-6,7-dimethoxyflavone.

SYNTHESIS OF 3,5,6,7-TETRAMETHOXYFLAVONE AND 4'-HYDROXY-3,5,6,7,3',5'-HEXAMETHOXYFLAVONE

Syntheses of 3,5,6,7-tetramethoxyflavone (1) and 4'-hydroxy-3,5,6,7,3',5'-hexamethoxyflavone (2), the constituents of Gomphrena martiana and Murraya paniculata, respectively, are described starting from 2-hydroxy-ω,4,6-trimethoxyacetophenone

FLAVANOIDS FROM THE LEAF RESIN OF ADENOSTOMA SPARSIFOLIUM

Four flavanoids were identified from the external leaf extract of Adenostoma sparsifolium: the two new flavones 3,7-dihydroxy-5,6-dimethoxyflavone and 3,5,7-trihydroxy-8-methoxyflavone and the known compounds galangin and pinocembrin.Key Word Index - Adenostoma sparsifolium; Rosaceae; flavonoids; 3,7-dihydroxy-5,6-dimethoxyflavone; 3,5,7-trihydroxy-8-methoxyflavone; galangin; pinocembrin