50439-47-9

Usage

InChI:InChI=1/C20H20O9/c1-24-11-8-9(6-7-10(11)21)15-17(25-2)13(22)12-14(23)18(26-3)20(28-5)19(27-4)16(12)29-15/h6-8,21,23H,1-5H3

Upstream product

• 173217-73-7 2-(4-Benzyloxy-3-methoxy-phenyl)-3,6-dihydroxy-5,7,8-trimethoxy-chromen-4-one 
• 1027945-31-8 4-Benzyloxy-3-methoxy-benzoic acid 2-acetyl-3,5,6-trimethoxy-4-methoxymethoxy-phenyl ester 
• 173217-77-1 2-(4-Benzyloxy-3-methoxy-phenyl)-3-hydroxy-5,7,8-trimethoxy-6-methoxymethoxy-chromen-4-one 
• 173217-76-0 2-(4-Benzyloxy-3-methoxy-phenyl)-5,7,8-trimethoxy-6-methoxymethoxy-chromen-4-one 
• 173217-67-9 2-(4-Benzyloxy-3-methoxy-phenyl)-3,5,6,7,8-pentamethoxy-chromen-4-one 
• 173217-75-9 2-(4-Benzyloxy-3-methoxy-phenyl)-6-hydroxy-5,7,8-trimethoxy-chromen-4-one 
• 173217-34-0 1-(2-Hydroxy-3,4,6-trimethoxy-5-methoxymethoxy-phenyl)-ethanone 
• 55742-65-9 2',5'-dihydroxy-3',4',6'-trimethoxyacetophenone 
• 1486-52-8 3-methoxy-4-benzyloxybenzoyl chloride 
• 173217-68-0 2-(4-Benzyloxy-3-methoxy-phenyl)-5-hydroxy-3,6,7,8-tetramethoxy-chromen-4-one 

Relevant academic research and scientific papers

Studies of the selective O-alkylation and dealkylation of flavonoids. XIX. A convenient method for synthesizing 3,5,6,7,8-pentaoxygenated flavones

The methoxymethyl ethers of 6-hydroxy-5,7,8-trimethoxyflavones, which were derived from 2',5'dihydroxy-3',4',6'-trimethoxyacetophenone, were oxidized with dimethyldioxirane to give the corresponding 3-hydroxyflavones. Selective O-alkylation and dealkylation of the 3-hydroxyflavones were examined and a convenient method for synthesizing the following ten kinds of 3,5,6,7,8- pentaoxygenated flavones was established: 3-hydroxy-5,6,7,8- tetramethoxyflavones, 3,5-dihydroxy-6,7,8-trimethoxyflavones, 3,6-dihydroxy- 5,7,8-trimethoxyflavones, 3,5,6-trihydroxy-7,8-dimethoxyflavones, 3,5,6,7- tetrahydroxy-8-methoxyflavones, and their 3-methyl ethers. Furthermore, 3,5,8-trihydroxy-4',6,7-trimethoxyflavone, 3,8-dihydroxy-4',5,6,7- tetramethoxyflavone, and 5,8-dihydroxy-3,6,7-trimethoxyflavones were similarly synthesized and their spectral properties were examined. Additionally, the proposed structures of three natural flavones were revised.