ChemicalBook CAS DataBase List 2-benzoquinone

2-benzoquinone synthesis

9synthesis methods

Product Name:2-benzoquinone
CAS Number:583-63-1
Molecular formula:C6H4O2
Molecular Weight:108.09

1-Propanone,1-(3,4-dimethoxyphenyl)-3-hydroxy-2-(2-methoxyphenoxy)-

10548-77-3
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583-63-1
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90-05-1 Synthesis

90-05-1
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93-07-2 Synthesis

93-07-2
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Yield:93-07-2 71% ，90-05-1 17% ，583-63-1 22%

Reaction Conditions:

with dihydrogen peroxide;sodium hydroxide in tetrahydrofuran;methanol; pH=10 at 70; for 4 h;

Steps:

General Procedure for C-C Cleavage of Oxidized Lignin Model Compound by Hydrogen Peroxide in Aqueous Alkaline Media:
4 mL of hydrogen peroxide 30% adjusted pH at 10.0 by NaOH was added to 3 (0.5 mmol, 165.0 mg). This suspension was heated at 70° C. for 4 h. After that, the reaction mixture cooled down and the reaction mixture was acidified by aqueous HCl (0.5 M) solution (pH 3.0). Organic compounds were extracted by ethyl acetate (3×30 mL). Organic layers combined, dried over MgSO₄, filtered and concentrated under vacuum. The residue was submitted to NMR spectroscopy and yield of any individual compound determined by internal standard (mesitylene).

References:

Wisconsin Alumni Research Foundation;Stahl, Shannon S.;Rahimi, Alireza US2014/235838, 2014, A1 Location in patent:Paragraph 0100

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120-80-9 Synthesis