A process for preparing...

Details A process for preparing... A process for preparing...

C - Chemistry, Metallurgy

07

C

C07C 51/15 (2006.01) C07C 65/11 (2006.01)

Patent

CA 2241101

The present invention relates to a process for preparing 2-hydroxynaphthalene-3,6-dicarboxylic acid which comprises reacting potassium 2-naphtholate and carbon dioxide at a temperature 290°C or higher under a pressure 30kg/cm2 (G) or higher. According to this process, 2-hydroxynaphthalene- 3,6-dicarboxylic acid can be obtained in high yield.

L'invention concerne un procédé de production d'acide 2-hydroxynaphtalène-3-6-dicarboxylique en grande quantité, qui consiste à faire réagir du 2-naphtolate de potassium avec du dioxyde de carbone, à 290 DEG C ou plus, sous 30 kg/cm<2> (G) ou plus.

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