Cycloaddition reactions of substituted vinylcyclopropanes with 4-phenyl-1,2,4-triazoline-3,5-dione and chlorosulfonylisocyanate
β Scribed by Daniel J. Pasto; A. Fu-Tai Chen
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- French
- Weight
- 195 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
In a continuing study of cycloaddition reactions involving cyclopropane ring-containing systems (1) we have investigated the reactions of vinylcyclopropane and some substituted vinylcyclopropanes with 4-phenyl-1,2,4-triazoline-3,5-dione (PTAD) and chlorosulfonylisocyanate (CSI).
π SIMILAR VOLUMES
## Abstract The title dienophiles attack nopadiene from the less hindered side.
## Abstract Relative rates of [4 + 2] cycloadditions of cyclopentadienes 1aβ1e with 4βphenylβ1,2,4βtriazolineβ3,5βdione (2) in 12 different solvents vary by factors of up to 19000, but the reactions show similar solvent effects. Rate constants __k__~2~ correlate well with solvent parameters __AN__