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ChemicalBook CAS DataBase List 2,6-Dimethoxyphenol
91-10-1

2,6-Dimethoxyphenol synthesis

10synthesis methods
By reacting pyrogallol with methyl iodide in alkaline aqueous medium; by demethylation of pyrogallol trimethyl ether in aqueous alkali or in alcohol
-

Yield:100-09-4 99%

Reaction Conditions:

with oxygen;copper(II) nitrate in acetonitrile at 120; under 4500.45 Torr; for 10 h;

Steps:

37 Example 37

In a 15 mL reactor with a PTFE liner,Add 0.1 mmol of 2-(2,6-dimethoxy)phenoxy-1-(4-methoxy)phenylethanone,Weigh 0.02 mmol of copper nitrate as a catalyst and add 2 mL of solvent acetonitrile (substrate concentration: 0.05 mol/L).The oxygen pressure is increased to 0.6 MPa, the temperature is raised to 120 ° C, and the reaction is stirred for 10 hours. After the reaction is completed,Gas chromatography-mass spectrometry products,The mass spectrum of the product 4-methoxybenzoic acid and 2,6-dimethoxyphenol is consistent with the standard mass spectrum.The yield of the substrate was quantified by gas chromatography and the yield of the product 4-methoxybenzoic acid is shown in Table 1.

References:

CN108002968,2018,A Location in patent:Paragraph 0133; 0134

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