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Synthesis of Iodosulfophenylazo and Iodocarboxy‐phenylazo Derivatives of 1‐Amino‐8‐Naphthol‐2, 4‐Disulfonic Acid*

✍ Scribed by Bang, Haakon


Publisher
Elsevier
Year
1947
Weight
168 KB
Volume
36
Category
Article
ISSN
0095-9553

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✍ Barbara Cacciari; Giampiero Spalluto; Valeria Ferretti 📂 Article 📅 2003 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 79 KB

## Abstract An unexpected compound (5‐amino‐4‐cyano‐2,3‐dihydrofuran‐2,3‐disulfonic acid disodium salt, **4**) was isolated from the reaction of glyoxale bis hydrogen sulfite disodium salt with malononitrile. Its structure was undoubtly identified through crystal structure analysis. Compound **4**