Syntheses of Diquinolyl Ethers. V.

Abstract

Reaction of 3-bromoquinoline with potassium salt of 6-, 7-, and 8-hydroxyquinoline by heating them in the presence of copper powder afforded diquinolyl-3, 6′ (I), diquinolyl-3, 7′ (II), and diquinolyl-3, 8′ (III) ethers. The similar reaction of 3-bromoquinoline and potassium phenoxide gave 3-phenoxyquinoline. The diquinolyl ethers obtained to date are listed in Table I.