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ChemicalBook CAS DataBase List 2,3-Naphthalenedicarboxylic acid
2169-87-1

2,3-Naphthalenedicarboxylic acid synthesis

8synthesis methods
Using o-phthalaldehyde as raw material, the 2,3-Naphthalenedicarboxylic acid is finally produced through acetalization reaction, reduction reaction, hydrolysis reaction, cycloaddition reaction, dehydration reaction, and hydrolysis reaction.
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Yield:2169-87-1 97%

Reaction Conditions:

with hydrogenchloride;sodium hydroxide in water; pH=5.5 at 30; for 15 h;Temperature;pH-value;

Steps:

3.VI
General procedure: (VI) Hydrolysis reaction: Naphthalic anhydride was added to the sodium hydroxide solution at a concentration of 8%, then adjusted to pH 5 with hydrochloric acid and reacted at a temperature of 2 ° C for 2 hours. The filter cake was then filtered and washed and dried to give 2,3-naphthalene dicarboxylic acid.

References:

Hebei Fan Ke Chemical Co., Ltd.;Zhou Weijiang;Bai Shikang;Duan Jun;Wang Zeyong CN106748752, 2017, A Location in patent:Paragraph 0056; 0063

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