71593-90-3

Upstream product

• 78430-12-3 3,4'-dimethoxy-7-hydroxyflavone 
• 106-95-6 allyl bromide 
• 57280-75-8 2',4'-dihydroxy-2-methoxyacetophenone 
• 794-94-5 p-Methoxybenzoic anhydride 
• 78430-11-2 3,4'-dimethoxy-7-(methoxymethoxy)flavone 
• 78437-97-5 3-hydroxy-7-(methoxymethoxy)-4'-methoxyflavone 
• 71593-89-0 7-allyloxy-3,4'-dimethoxyflavone 

Downstream Products

• 78430-13-4 [7-Hydroxy-3-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-8-yl]-acetaldehyde 
• 78875-41-9 8-allyl-7-allyloxy-3,4'-dimethoxyflavone 
• 70894-16-5 3-methoxy-2-(4-methoxyphenyl)-4H-furo<2,3-h><1>benzopyran-4-one 
• 102237-26-3 8-(2-bromo-propyl)-7-hydroxy-3-methoxy-2-(4-methoxy-phenyl)-chromen-4-one 

Relevant academic research and scientific papers

Synthesis of 3,4'-Dimethoxyfuranoflavone

3,4'-Dimethoxyfuranoflavone (VI) has been synthesised starting from 3,4'-dimethoxy-7-hydroxyflavone (III) through the steps of allylation to give 7-allyloxy-3,4'-dimethoxyflavone (IV), followed by Claisen migration to 8-C-allyl-3,4'-dimethoxy

SYNTHESIS OF 3-METHOXY-2-(4-METHOXYPHENYL)-4H-FURO-BENZOPYRAN-4-ONE AND ITS ISOMER

3-Methoxy-2-(4-methoxyphenyl)-4H-furo-benzopyran-4-one, 2, has been synthesized starting from 7-hydroxy-3,4'-dimethoxyflavone, 3. 3, on allylation followed by Claisen migration, gave 8-allyl-7-hydroxy-3,4'-dimethoxyflavone, 5; the latter on oxidation with OsO4-KIO4, followed by cyclisation of the intermediate aldehyde with PPA gave 2.Nuclear allylation of 3 gave 7-allyloxy-3,4'-dimethoxyflavone, 4, 8-allyl-7-allyloxy-3,4'-dimethoxyflavone, 6, 6,8-diallyl-7-hydroxy-3,4'-dimethoxyflavone, 7, 6-allyl-7-hydroxy-3,4'-dimethoxyflavone, 10, and 8-allyl-7-hydroxy-3,4'-dimethoxyflavone , 5. 10 has also been synthesized from 3 by iodination followed by allylation and Claisen migration with simultaneous deiodination. 6-Methoxy-7-(4-methoxyphenyl)-5H-furobenzopyran-5-one, 11, an isomer of 2, has also been synthesized from 10.