Sterne, Kessler, Goldstein & Fox
Manufacturing method for 2-hydroxynaphthalene-6-carboxylic acid
 The present invention provides a production of 2-hydroxynaphthalene-6-carboxylic acid improved in the yield and the selective ratio, in which .beta.-naphthol and water formed in the reaction system are eliminated therefrom through the reaction. 
Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
C
C07C
inventional
Toru Yoshiyasu Ryuzo
Mori Masada Ueno