69119-50-2

Basic information

• Product Name: 8-bromo-3-O-acetyl-3',4',5,7-tetra-O-methyl-(-)-epicatechin
• CAS NO: 69119-50-2
• Molecular Weight: 467.313
• Mol File: 69119-50-2.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 8-bromo-3-O-acetyl-3',4',5,7-tetra-O-methyl-(-)-epicatechin(CAS DataBase Reference)
• NIST Chemistry Reference: 8-bromo-3-O-acetyl-3',4',5,7-tetra-O-methyl-(-)-epicatechin(69119-50-2)
• EPA Substance Registry System: 8-bromo-3-O-acetyl-3',4',5,7-tetra-O-methyl-(-)-epicatechin(69119-50-2)

Safety Data

• Hazardous Substances Data: 69119-50-2(Hazardous Substances Data)

Upstream product

• 108-24-7 acetic anhydride 
• 1053174-97-2 <4,8>-2,3-trans-3,4-cis:2,3-trans-(-)-fisetinidol-(+)catechin heptamethyl ether diacetate 
• 69127-07-7 (2R,3S,4R)-2,3-trans-3,4-cis-3-acetoxy-4-<(2R,3S)-2,3-trans-3-acetoxy-3,3',4',5,7-pentamethoxyflavan-8-yl>-3',4',7-trimethoxyflavan 
• 490-46-0 (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol 
• 88038-01-1 8-bromo-(-)-epicatechin 
• 88489-00-3 (2R,3S)-8-Bromo-2-(3,4-dihydroxy-phenyl)-chroman-3,5,7-triol 
• 51079-25-5 (2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether 
• 154-23-4 catechin 
• 78376-73-5 6,8-dibromo-3',4',5,7-tetra-O-methyl-(+)-catechin 
• 78393-95-0 6-bromo-3',4',5,7-tetra-O-methyl-(+)-catechin 
• 69119-42-2 3-O-benzyl-6,8-dibromo-3',4',5,7-tetra-O-methyl-(+)-catechin 
• 69119-40-0 6-bromo-3',4',5,7-tetra-O-methyl-(+)-catechin 
• 99260-77-2 4β-methoxy-tri-O-methyl-3-O-acetyl-(-)-fisetinidol-(4α,8)-tetra-O-methyl-3-O-acetyl-(+)-catechin 
• 58065-35-3 (+)-catechin tetramethyl ether acetate 

Relevant articles and documents

Regio- and stereoselective oxidation of flavan-3-ol-, 4-arylflavan-3-ol-, and biflavanoid derivatives with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)

The phenolic methyl esthers of flavan-3-ols, 4β-arylflavan-3-ols, and (-)-fisetinidol-(4β,8)-(+)-catechin biflavanoids are susceptible to regio- and stereoselective methoxylation at C-4 in moderate yields with DDQ in CHCl3-MeOH solution. The observed asymmetric induction with exclusive formation of 2,4-trans products is compatible with the intermediacy of a diastereogenic donor-acceptor interaction, DDQ acting as the acceptor and oxidant. The 4-funtionalized analogues are of both synthetic and degradative significance in condensed tannin chemistry.

STEREOSPECIFIC FUNCTIONALIZATION OF THE HETEROCYCLIC RING SYSTEMS OF FLAVAN-3-OL AND -BIFLAVAN-3-OL DERIVATIVES WITH 2,3-DICHLORO-5,6-DICYANO-1,4-BENZOQUINONE (DDQ)

Efficient stereospecific 4-methoxylation of both 2,3-trans- and 2,3-cis-flavan-3-ol methyl ethers with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) in CHCL3-MeOH solution is of both synthetic and degradative significance in oligomeric flavanoid chemist

Synthesis of Condensed Tannins. Part 3. Chemical Shifts for Determining the 6- and 8-Bonding Positions of 'Terminal' (+)-Catechin Units

Pairs of 6- and 8-functionalised (Br, OH, OAc, CO2Me, and CH2Me groups) 3',4',5,7-tetra-O-methyl-(+)-catechins available through selective bromination and debromination reactions and hence via lithio-analogues, provide diagnostic chemical shifts of their