1,3-Dithienium- und 1,3-Dithioleniumsalze, VII. Synthese von 1,3-Dithian-2-ylium-tribromiden
β Scribed by Stahl, Ingfried
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1988
- Tongue
- English
- Weight
- 477 KB
- Volume
- 121
- Category
- Article
- ISSN
- 0009-2940
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dithiane derivatives R 0490 21 -142 1,3-Dithienium and 1,3-Dithiolenium Salts. Part 9. Reactions of 1,3-Dithiane-2-ylium Tetrafluoroborates with C-Nucleophiles. -New geminal disubstituted 1,3-dithianes, e.g. (III), (V), and (VII), are obtained by the title reaction. These compounds are potential pre
The kinetics of the [2 + + 4] cycloadditions of 1,3-dithian-2-cycloaddition pathway by the correlation lg k = s (E + N). Though a concerted cycloaddition pathway is not excluded ylium ions (1) with 1,3-dienes was investigated photometrically in dichloromethane. The second-order rate by this finding,