3’,4’,5,7-tetra-O-benzyl-8-bromoepicatechin-(4β8)-3’,4’,5,7-tetra-O-benzylepicatechin

Base Information

Chemical Name:3’,4’,5,7-tetra-O-benzyl-8-bromoepicatechin-(4β8)-3’,4’,5,7-tetra-O-benzylepicatechin
CAS No.:923565-06-4
Molecular Formula:C₈₆H₇₃BrO₁₂
Molecular Weight:1378.42
Hs Code.:

Synonyms:3’,4’,5,7-tetra-O-benzyl-8-bromoepicatechin-(4β8)-3’,4’,5,7-tetra-O-benzylepicatechin

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Chemical Property of 3’,4’,5,7-tetra-O-benzyl-8-bromoepicatechin-(4β8)-3’,4’,5,7-tetra-O-benzylepicatechin

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Technology Process of 3’,4’,5,7-tetra-O-benzyl-8-bromoepicatechin-(4β8)-3’,4’,5,7-tetra-O-benzylepicatechin

There total 6 articles about 3’,4’,5,7-tetra-O-benzyl-8-bromoepicatechin-(4β8)-3’,4’,5,7-tetra-O-benzylepicatechin which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 61.0%

: 223387-42-6
3’,4’,5,7-tetra-O-benzyl-4β-(2-hydroxyethyloxy)-8-bromoepicatechin

: 20728-73-8
5,7,3',4'-tetra-O-benzyl-(+)-catechin

: 923565-06-4
3’,4’,5,7-tetra-O-benzyl-8-bromoepicatechin-(4β8)-3’,4’,5,7-tetra-O-benzylepicatechin

Guidance literature:: With sodium tetrachloroaurate(III) dihyrate; In dichloromethane; at 20 ℃; for 12h; regioselective reaction; Inert atmosphere;
DOI:10.1016/j.tet.2014.11.011

Reference yield:

: 100-39-0
benzyl bromide

: 923565-06-4
3’,4’,5,7-tetra-O-benzyl-8-bromoepicatechin-(4β8)-3’,4’,5,7-tetra-O-benzylepicatechin

Guidance literature:: Multi-step reaction with 2 steps

1: 81 percent / K₂CO₃ / dimethylformamide / 0 - 20 °C

2: 47 percent / TiCl₄ / CH₂Cl₂; tetrahydrofuran / 3 h / 20 °C

With titanium tetrachloride; potassium carbonate; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1002/ejoc.200600668

Reference yield:

: 223387-26-6
3’,4’,5,7-tetra-O-benzyl-4β-(2-hydroxyethyloxy)epicatechin

: 923565-06-4
3’,4’,5,7-tetra-O-benzyl-8-bromoepicatechin-(4β8)-3’,4’,5,7-tetra-O-benzylepicatechin

Guidance literature:: Multi-step reaction with 2 steps

1: 99 percent / N-bromosuccinimide / CH₂Cl₂ / -78 - 20 °C

2: 47 percent / TiCl₄ / CH₂Cl₂; tetrahydrofuran / 3 h / 20 °C

With N-Bromosuccinimide; titanium tetrachloride; In tetrahydrofuran; dichloromethane;
DOI:10.1002/ejoc.200600668