Condensation of Phenols and Aromatic Amines with Quinolinic and Nicotinic Acids to Form Dyes Analogous to the Phthaleins

Abstract

The author was desirous of investigating the properties of "quinolineins" as compared with those of corresponding phthaleins. As there was no quinolinic acid available in the laboratory, an attempt was made to prepare it. It was found that most methods gave very small yields, with the exception of one.