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Syntheses of the isomeric amino- and bromo-1,5-naphthyridines

✍ Scribed by W. Czuba

Book ID
104586692
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
424 KB
Volume
82
Category
Article
ISSN
0165-0513

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✦ Synopsis

Abstract

Syntheses of the three isomeric bromo‐1,5‐naphthyridines from 2‐hydroxy‐1,5‐naphthyridine, 3‐amino‐5‐bromopyridine (Skraup‐synthesis) and 4‐hydroxy‐1,5‐naphthyridine are described.

New methods for the preparation of 2‐ and 3‐amino‐1,5‐naphthyridine are given.

Some physical and chemical properties (inter alia the infrared spectra) of the substances investigated have been established.

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The amination of 3-bromo-2-ethoxy-1,5-naphthyridine. A reinvestigation
✍ H. J. W. van den Haak; H. C. van der Plas 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 424 KB

## Abstract The reaction of 3‐bromo‐2‐ethoxy‐1,5‐naphthyridine with KNH~2~/NH~3~ was reinvestigated. The procedure, described in the literature for the preparation of the title compound does not lead to this compound but to the isomeric 3‐bromo‐1‐ethyl‐1,5‐naphthyridin‐2(1__H__)‐one. Reaction of th