ChemInform Abstract: Carbenoid Reactions of Dimethyl Diazomalonate with Aromatic Thioketones and 1,3-Thiazole-5(4H)-thiones.
โ Scribed by G. MLOSTON; H. HEIMGARTNER
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 27 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0931-7597
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๐ SIMILAR VOLUMES
## 23 -130 [2 + 3] Cycloadditions of Azomethine Ylides with 1,3-Thiazole-5(4H)thiones. -Azomethine ylides, generated thermally from trans and cis aziridines (I), (VII), (VIII), and (X) give with thiazolethiones (II) in almost all cases mixtures of only two diastereomeric spirocyclic [2 + 3] cycloa
Treatment of solutions of 1,3-thiazole-5(4H)-thiones 1 in CH 2 Cl 2 at room temperature with BF 3 ยดEt 2 O and 1,2-epoxycyclohexane (7-oxabicyclo[4.1.0]heptane; 2a) or 1,2-epoxycyclopentane (6-oxabicyclo[3.1.0]hexane; 2b) yielded mixtures of diastereoisomeric spirocyclic 1,3-oxathiolanes (3/4 and 8/9