3',4',5,7-Tetra-O-methyl-3-O--(+)-catechin

Base Information

Chemical Name:3',4',5,7-Tetra-O-methyl-3-O--(+)-catechin
CAS No.:138571-71-8
Molecular Formula:C₂₁H₂₄O₆S₂
Molecular Weight:436.55
Hs Code.:

3',4',5,7-Tetra-O-methyl-3-O-<methylthio(thiocarbonyl)>-(+)-catechin

Synonyms:3',4',5,7-Tetra-O-methyl-3-O--(+)-catechin

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Chemical Property of 3',4',5,7-Tetra-O-methyl-3-O--(+)-catechin

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Technology Process of 3',4',5,7-Tetra-O-methyl-3-O--(+)-catechin

There total 3 articles about 3',4',5,7-Tetra-O-methyl-3-O--(+)-catechin 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: 88.0%

: 75-15-0,12122-00-8
carbon disulfide

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

: 74-88-4
methyl iodide

: 138571-71-8
3',4',5,7-Tetra-O-methyl-3-O--(+)-catechin

Guidance literature:: carbon disulfide; (2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether; With sodium hydride; In N,N-dimethyl-formamide; at 10 ℃; for 0.25h;

methyl iodide; In N,N-dimethyl-formamide; at 20 ℃; for 0.333333h; Further stages.;
DOI:10.1021/jo000485+

Reference yield:

: 154-23-4
catechin

: 138571-71-8
3',4',5,7-Tetra-O-methyl-3-O--(+)-catechin

Guidance literature:: Multi-step reaction with 2 steps

1.1: 79 percent / K₂CO₃ / acetone / 6 h / Heating

2.1: NaH / dimethylformamide / 0.25 h / 10 °C

2.2: 88 percent / dimethylformamide / 0.33 h / 20 °C

With sodium hydride; potassium carbonate; In N,N-dimethyl-formamide; acetone; 1.1: Methylation / 2.1: Addition / 2.2: Methylation;
DOI:10.1021/jo000485+

Reference yield:

: 154-23-4,490-46-0,7295-85-4,13392-26-2,17334-50-8,18829-70-4,35323-91-2,72690-97-2
catechin hydrate

: 138571-71-8
3',4',5,7-Tetra-O-methyl-3-O--(+)-catechin

Guidance literature:: Multi-step reaction with 2 steps

1: aqueous sodium hydroxide

2: 51 percent / 50percent aqueous NaOH, tetra-n-butylammonium bromide / CH₂Cl₂ / 1.) 10 deg C, 1 h, 2.) up to r.t., 3.) reflux, 3 h

With sodium hydroxide; tetrabutylammomium bromide; In dichloromethane;