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Selenium-Containing Heterocycles from Isoselenocyanates: Use of Hydrazine for the Synthesis of 1,3,4-Selenadiazine Derivatives

✍ Scribed by Geoffroy L. Sommen; Anthony Linden; Heinz Heimgartner

Publisher
John Wiley and Sons
Year
2006
Tongue
German
Weight
99 KB
Volume
89
Category
Article
ISSN
0018-019X

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✦ Synopsis

Aryl isoselenocyanates 1 react with different phenacyl halides 2 in the presence of hydrazine hydrate in a one-pot reaction to give selenadiazines 3a -3f in good-to-excellent yields.

📜 SIMILAR VOLUMES

Selenium-Containing Heterocycles from Is
Selenium-Containing Heterocycles from Isoselenocyanates: Synthesis of 1,3-Selenazinane and 1,3-Selenazinanone Derivatives
✍ Geoffroy L. Sommen; Anthony Linden; Heinz Heimgartner 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 German ⚖ 174 KB 👁 1 views

## Abstract The reaction of the intermediate ketene N,Se‐hemiacetal **3**, prepared from cyanomethylene derivatives **1** by treatment with Et~3~N and aryl isoselenocyanates **2**, with bis‐electrophiles **6, 7, 9**, and **11** in DMF affords tetrahydro‐1__H__‐1,3‐selenazine (=1,3‐selenazinane) der