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2-(4-benzyloxy-3-methoxy-phenyl)-5-hydroxy-3,6,7-trimethoxy-chromen-4-one is a complex organic compound belonging to the class of flavonoids, specifically flavones. It is characterized by a chromen-4-one core structure, which is a type of flavone. This molecule features a 4-benzyloxy-3-methoxy-phenyl group at the 2-position, a hydroxyl group at the 5-position, and three methoxy groups at the 3, 6, and 7 positions. The benzyloxy group provides a phenolic ether linkage, while the methoxy groups are alkyl ethers attached to the aromatic ring. 2-(4-benzyloxy-3-methoxy-phenyl)-5-hydroxy-3,6,7-trimethoxy-chromen-4-one is known for its potential biological activities, such as antioxidant and anti-inflammatory properties, and is often found in plants with medicinal value. Its chemical structure and functional groups contribute to its reactivity and interaction with biological systems, making it a subject of interest in pharmaceutical and natural product chemistry.

19722-82-8

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19722-82-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19722-82-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,7,2 and 2 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19722-82:
(7*1)+(6*9)+(5*7)+(4*2)+(3*2)+(2*8)+(1*2)=128
128 % 10 = 8
So 19722-82-8 is a valid CAS Registry Number.

19722-82-8Relevant academic research and scientific papers

STUDIES OF THE SELECTIVE O-ALKYLATION AND DEALKYLATION OF FLAVONOIDS. XII. A NEW, CONVENIENT METHOD FOR SYNTHESIZING 3,5-DIHYDROXY-6,7-DIMETHOXYFLAVONES FROM 3,5,6,7-TETRAMETHOXYFLAVONES

Horie, Tokunaru,Kawamura, Yasuhiko,Tsukayama, Masao,Yoshizaki, Shiro

, p. 1216 - 1220 (2007/10/02)

The 5-methoxy group on 3,5,6,7-tetramethoxyflavones and the 3-methoxy group on 3,6,7-trimethoxy-5-tosyloxy-flavones were selectively cleaved with anhydrous aluminum bromide in acetonitrile under controlled conditions without the cleavage of benzyloxy groups on the B ring.By the application of these reactions, seven 3,5-dihydroxy-6,7-dimethoxyflavones were easily synthesized from the corresponding 3,5,6,7-tetramethoxyflavones which were synthesized from 3,6-dihydroxy-2,4ω-trimethoxycetophenone by means of the Allan-Robinson reaction followed by methylation.Keywords: Allan-Robinson reaction ; selective demethylation; 3,5,6,7-tetramethoxyflavone; 5-hydroxy-3,6,7-trimethoxyflavone; 6-hydroxy-3,5,7-trimethoxyflavone; 5-tosyloxyflavone; 5,6-dihydroxy-3,7-dimethoxyflavone; 3,5-dihydroxy-6,7-dimethoxyflavone, 3,5-diacetoxy-6,7-dimethoxyflavone

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