923565-00-8

Basic information

• Product Name: 2H-1-Benzopyran-3-ol, 2-[3,4-bis(phenylmethoxy)phenyl]-8-bromo-3,4-dihydro-4-(2-hydroxyeth oxy)-5,7-bis(phenylmethoxy)-, (2R,3S,4S)-
• CAS NO: 923565-00-8
• Molecular Formula: C45H41BrO8
• Molecular Weight: 789.72
• Mol File: 923565-00-8.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 2H-1-Benzopyran-3-ol, 2-[3,4-bis(phenylmethoxy)phenyl]-8-bromo-3,4-dihydro-4-(2-hydroxyeth oxy)-5,7-bis(phenylmethoxy)-, (2R,3S,4S)-(CAS DataBase Reference)
• NIST Chemistry Reference: 2H-1-Benzopyran-3-ol, 2-[3,4-bis(phenylmethoxy)phenyl]-8-bromo-3,4-dihydro-4-(2-hydroxyeth oxy)-5,7-bis(phenylmethoxy)-, (2R,3S,4S)-(923565-00-8)
• EPA Substance Registry System: 2H-1-Benzopyran-3-ol, 2-[3,4-bis(phenylmethoxy)phenyl]-8-bromo-3,4-dihydro-4-(2-hydroxyeth oxy)-5,7-bis(phenylmethoxy)-, (2R,3S,4S)-(923565-00-8)

Safety Data

• Hazardous Substances Data: 923565-00-8(Hazardous Substances Data)

Upstream product

• 100-39-0 benzyl bromide 
• 223387-51-7 (2R,3S,4S)-5,7,3',4'-tetrabenzyloxy-4-(2-hydroxyethyloxy)flavan-3-ol 
• 154-23-4 catechin 
• 20728-73-8 5,7,3',4'-tetra-O-benzyl-(+)-catechin 
• 107-21-1 ethylene glycol 
• 256236-21-2 5,7,3',4'-tetra-O-benzyl-8-bromocatechin 

Downstream Products

• 29106-51-2 procyanidin B₄ 
• 23567-23-9 procyanidin B₃ 
• 923565-05-3 3',4',5,7-tetra-O-benzyl-8-bromocatechin-4α,8-(3',4',5,7-tetra-O-benzylepicatechin) 
• 923565-04-2 3’,4’,5,7-tetra-O-benzyl-8-bromocatechin-(4α8)-3’,4’,5,7-tetra-O-benzylcatechin 

Relevant articles and documents

From the gold-catalysed benzylation of arenes to the regio- and stereoselective synthesis of procyanidins dimers

This work reports on a new intermolecular C-C coupling reaction between electron rich arenes and benzylic alcohols or ethers, catalysed by gold(III) salts, or other catalysts such as gold(I) and iron (III), and its application to the regio- and stereoselective synthesis of procyanidins dimers B1 and B3.

Synthetic methods for preparation of protected proanthocyanidin(s)

A process is disclosed for the production of polyphenol oligomers having n polyphenol monomeric units, n being an integer from 2-18. The process includes coupling of a protected polyphenol, having protected phenolic hydroxyl groups, with a C-4 functionali