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Synthesis of [1,3]Dithiole and Spiro[1,3]dithiole Thiopyran Derivatives of the [1,2]Dithiolo[1,4]thiazine Ring System

✍ Scribed by Barriga, Susana; Fuertes, Pedro; Marcos, Carlos F.; Rakitin, Oleg A.; Torroba, Tomás

Book ID
120257232
Publisher
American Chemical Society
Year
2002
Tongue
English
Weight
212 KB
Volume
67
Category
Article
ISSN
0022-3263

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On the ring-contraction of 1,4-dithiins
On the ring-contraction of 1,4-dithiins to 1,3-dithiole derivatives
✍ Raquel Andreu; Javier Garı́n; Jesús Orduna; José M Royo 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 62 KB

The effect of different factors (pK a of the base, nature of the counterion and dissociation of the ion pairs) on the course of the base-induced rearrangement of 1,4-dithiins to 1,3-dithiole derivatives is discussed. Ab initio calculations account for the driving force of these isomerisations.