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Studies on the Synthesis of 6-Hydroxy-7-bromoquinoline. II

Eiichi Fujita, Noriko Waki

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Abstract

Debromination of bromine in the 5-position of 5, 7-dibromo-6-hydroxyquinoline (III) with hydrobromic acid and phenol was examined and 6-hydroxy-7-bromoquinoline (II) was found to be obtained in a high yield when (III) is heated for 2 hours with 48% hydrobromic acid and phenol, with agitation. (II) is also obtained in a high yield when (III) is heated with phosphoric and sulfuric acids and glycerol.

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Debromination of bromine in the 5-position of 5, 7-dibromo-6-hydroxyquinoline (III) with hydrobromic acid and phenol was examined and 6-hydroxy-7-bromoquinoline (II) was found to be obtained in a high yield when (III) is heated for 2 hours with 48% hydrobromic acid and phenol, with agitation. (II) is also obtained in a high yield when (III) is heated with phosphoric and sulfuric acids and glycerol.

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Available abstract

Debromination of bromine in the 5-position of 5, 7-dibromo-6-hydroxyquinoline (III) with hydrobromic acid and phenol was examined and 6-hydroxy-7-bromoquinoline (II) was found to be obtained in a high yield when (III) is heated for 2 hours with 48% hydrobromic acid and phenol, with agitation. (II) is also obtained in a high yield when (III) is heated with phosphoric and sulfuric acids and glycerol.

Key concepts: Hydrobromic acid, Yield (engineering), Sulfuric acid, Bromine, Chemistry, Phenol, Phosphoric acid, Glycerol

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