2H-Benzopyran, 2-(3,4-dimethoxyphenyl)-3,4-dihydro-3,5,7-trimethoxy-, (2R-trans)-

Base Information

Chemical Name:2H-Benzopyran, 2-(3,4-dimethoxyphenyl)-3,4-dihydro-3,5,7-trimethoxy-, (2R-trans)-
CAS No.:51154-08-6
Molecular Formula:C20H24O6
Molecular Weight:360.407
Hs Code.:
DSSTox Substance ID:DTXSID70199177
Wikidata:Q83072087

Synonyms:51154-08-6;2H-Benzopyran, 2-(3,4-dimethoxyphenyl)-3,4-dihydro-3,5,7-trimethoxy-, (2R-trans)-;(2R-trans)-2-(3,4-Dimethoxyphenyl)-3,4-dihydro-3,5,7-trimethoxy-2H-benzopyran;DTXSID70199177

Suppliers and Price of 2H-Benzopyran, 2-(3,4-dimethoxyphenyl)-3,4-dihydro-3,5,7-trimethoxy-, (2R-trans)-

Supply Marketing:

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

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Chemical Property of 2H-Benzopyran, 2-(3,4-dimethoxyphenyl)-3,4-dihydro-3,5,7-trimethoxy-, (2R-trans)-

Chemical Property:

Vapor Pressure:1.99E-09mmHg at 25°C
Boiling Point:494.3°Cat760mmHg
Flash Point:201.7°C
Density:1.2g/cm³
XLogP3:3.3
Hydrogen Bond Donor Count:0
Hydrogen Bond Acceptor Count:6
Rotatable Bond Count:6
Exact Mass:360.15728848
Heavy Atom Count:26
Complexity:433

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:: SDS file from LookChem

Useful:

Canonical SMILES:COC1CC2=C(C=C(C=C2OC)OC)OC1C3=CC(=C(C=C3)OC)OC
Isomeric SMILES:CO[C@H]1CC2=C(C=C(C=C2OC)OC)O[C@@H]1C3=CC(=C(C=C3)OC)OC

Technology Process of 2H-Benzopyran, 2-(3,4-dimethoxyphenyl)-3,4-dihydro-3,5,7-trimethoxy-, (2R-trans)-

There total 13 articles about 2H-Benzopyran, 2-(3,4-dimethoxyphenyl)-3,4-dihydro-3,5,7-trimethoxy-, (2R-trans)- 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: 86.0%

: 51079-25-5
(2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether

: 74-88-4
methyl iodide

: 51154-08-6
(2R,3S)-3,3',4',5,7-pentamethoxyflavan

Guidance literature:: With sodium hydride; In N,N-dimethyl-formamide; at 20 ℃; for 6h;
DOI:10.1016/j.tet.2014.10.058

Reference yield:

: 154-23-4
catechin

: 51154-08-6
(2R,3S)-3,3',4',5,7-pentamethoxyflavan

Guidance literature:: Multi-step reaction with 2 steps

1: potassium carbonate / acetone / 3 h / Heating

2: sodium hydride / N,N-dimethyl-formamide / 6 h / 20 °C

With sodium hydride; potassium carbonate; In N,N-dimethyl-formamide; acetone;
DOI:10.1016/j.tet.2014.10.058