154047-95-7

Upstream product

• 84019-17-0 5,6-dihydroxy-3,7,4′-trimethoxyflavonol 
• 154047-82-2 5,6-dihydroxy-3,4',7-trimethoxyflavone diacetate 
• 108-24-7 acetic anhydride 
• 170235-00-4 Toluene-4-sulfonic acid 6-hydroxy-3,7-dimethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-5-yl ester 
• 98-59-9 p-toluenesulfonyl chloride 
• 154047-87-7 6-acetoxy-5-hydroxy-3,4',7-trimethoxyflavone 

Downstream Products

• 170235-00-4 Toluene-4-sulfonic acid 6-hydroxy-3,7-dimethoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-5-yl ester 
• 154048-11-0 Toluene-4-sulfonic acid 3,6-dihydroxy-7-methoxy-2-(4-methoxy-phenyl)-4-oxo-4H-chromen-5-yl ester 
• 154048-27-8 3,5-Dihydroxy-7-methoxy-6-methoxymethoxy-2-(4-methoxy-phenyl)-chromen-4-one 
• 99499-82-8 6-hydroxykaempferol 7,4'-dimethyl ether 
• 154048-03-0 Acetic acid 3-hydroxy-7-methoxy-2-(4-methoxy-phenyl)-4-oxo-5-(toluene-4-sulfonyloxy)-4H-chromen-6-yl ester 

Relevant academic research and scientific papers

Studies of the selective O-alkylation and dealkylation of flavonoids. XXIII. Demethylation behaviors of 6-hydroxy-4',7-dimethoxy-5-tosyloxyflavones with anhydrous aluminum halides in acetonitrile

In the demethylation of 6-hydroxy-3,4',7-trimethoxy-5-tosyloxyflavone (1) with anhydrous aluminum bromide (AlBr3) or anhydrous aluminum chloride- sodium iodide (AlCl3-NaI) in acetonitrile, the elimination of the 5-tosyloxy group proc