4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid synthesis
- Product Name:4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid
- CAS Number:13987-45-6
- Molecular formula:C14H10O6
- Molecular Weight:274.23
92-88-6
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584-08-7
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13987-45-6
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Yield:13987-45-6 95%
Reaction Conditions:
in N,N-dimethyl-formamide at 200; for 70 h;Concentration;Temperature;Time;Solvent;
Steps:
1; 3.8-3.12
11.20 g of 4,4′-biphenol([1,1′-biphenyl]-4,4′-diol), 3 equivalents (24.93 g) of K2CO3, and 68 mL of N,N-dimethylformamide (DMF) were placed in a 300 mL steel reactor. The solvothermal reaction was carried out with stirring at 200° C. for 70 h. The product thus obtained was colored light pink and in the form of a sludge. The solvent DMF also turned red. The light pink product in the form of a sludge was separated from the DMF through a filter and acidified with hydrochloric acid. After completion of the acidification, the product was colored white. The acidified product was washed several times with distilled water until neutrality and dried in an oven at ≥12 h. The dried product was identified by nuclear magnetic resonance spectroscopy (FIG. 3). The yield was found to be 95%.
References:
US2021/230092,2021,A1 Location in patent:Paragraph 0043; 0071-0084
92-88-6
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298-14-6
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13987-45-6
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92-88-6
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13987-45-6
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13987-45-6
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13987-45-6
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