2H-1-Benzopyran, 2-[3,4-bis(phenylmethoxy)phenyl]-8-bromo-3,4-dihydro-3,5,7-tris(phenyl methoxy)-, (2R,3S)-

Base Information

Chemical Name:2H-1-Benzopyran, 2-[3,4-bis(phenylmethoxy)phenyl]-8-bromo-3,4-dihydro-3,5,7-tris(phenyl methoxy)-, (2R,3S)-
CAS No.:89385-19-3
Molecular Formula:C50H43BrO6
Molecular Weight:819.792
Hs Code.:

Synonyms:

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of 2H-1-Benzopyran, 2-[3,4-bis(phenylmethoxy)phenyl]-8-bromo-3,4-dihydro-3,5,7-tris(phenyl methoxy)-, (2R,3S)-

Chemical Property:

Purity/Quality:

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Hazard Codes:

MSDS Files:: SDS file from LookChem

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Technology Process of 2H-1-Benzopyran, 2-[3,4-bis(phenylmethoxy)phenyl]-8-bromo-3,4-dihydro-3,5,7-tris(phenyl methoxy)-, (2R,3S)-

There total 4 articles about 2H-1-Benzopyran, 2-[3,4-bis(phenylmethoxy)phenyl]-8-bromo-3,4-dihydro-3,5,7-tris(phenyl methoxy)-, (2R,3S)- 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: 99.0%

: 100-39-0
benzyl bromide

: 256236-21-2
5,7,3',4'-tetra-O-benzyl-8-bromocatechin

: 89385-19-3
8-bromo-3,5,7,3',4'-penta-O-benzyl-(+)-catechin

Guidance literature:: With sodium hydride; In N,N-dimethyl-formamide; at 20 ℃; for 1.16667h;
DOI:10.1021/jo001462y

Reference yield: 96.0%

: 85443-49-8
(2R,3S)-3,5,7-tris(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)chroman

: 89385-19-3
8-bromo-3,5,7,3',4'-penta-O-benzyl-(+)-catechin

Guidance literature:: With N-Bromosuccinimide; In dichloromethane; at 0 - 20 ℃; Inert atmosphere;
DOI:10.1016/j.tet.2011.10.039

Reference yield:

: 100-44-7
benzyl chloride

: 89385-19-3
8-bromo-3,5,7,3',4'-penta-O-benzyl-(+)-catechin

Guidance literature:: Multi-step reaction with 2 steps

1: sodium hydride / N,N-dimethyl-formamide; mineral oil / -78 - 20 °C / Inert atmosphere

2: N-Bromosuccinimide / dichloromethane / 0 - 20 °C / Inert atmosphere

With N-Bromosuccinimide; sodium hydride; In dichloromethane; N,N-dimethyl-formamide; mineral oil;
DOI:10.1016/j.tet.2011.10.039