Ring‐Fused 1,2‐Dithioles, III. – Synthesis of 1,2‐Dithiolo‐furans A series of 1,3‐dithiino‐furans 4/9 has been synthesized by starting with the β‐ketoester 5a or the cyclic ketone 5b. The dithiines undergo oxidative ring contraction to give the corresponding 1,2‐dithiolo‐furans 3/14. The ester func
Kondensierte 1.2-Dithiole, I. Synthese von Thiolutin und verwandten Verbindungen
✍ Scribed by Stachel, Hans-Dietrich ;Nienaber, Juliane ;Zoukas, Thomas
- Book ID
- 102900932
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 965 KB
- Volume
- 1992
- Category
- Article
- ISSN
- 0947-3440
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✦ Synopsis
Ring‐Fused 1,2‐Dithioles, I. — Synthesis of Thiolutine and Related Compounds
The 1,2‐dithiolopyrrole 1 (thiolutine) has been obtained on two different routes. Firstly, by synthesis of the dithiolopyrrole 6a and introduction of the acetamino function into compound 6d by nitration followed by ester saponification and decarboxylation. 6d is also available from 9k by oxidative ring contraction which occurs with simultaneous dealkylation of the benzylamino group. Secondly, by synthesis of the dithiinopyrrole 15b and introduction of the acetamino function into compound 15g by Beckmann rearrangement followed by ring contraction.
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