Silica gel supported phosphonium salts as micellar and phase transfer catalysts
β Scribed by Pietro Tundo; Paolo Venturello
- Book ID
- 107858219
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- French
- Weight
- 342 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
Spacer-modified polymer supports have been synthesized through the polymeric Grignard reagent method. Phosphonium-active sites were then introduced into these supports and the polymer-supported phosphonium salts were used as phase transfer catalysts for the nucleophilic substitution reactions. lnflu
## Abstract **Chiraler PTC**: Eine hoch effiziente asymmetrische MichaelβAddition von 3βAryloxindolen gelang mit einem Tetraalkylphosphoniumsalz als chiralem Phasentransferkatalysator (PTC). Die Produkte wurden in nahezu quantitativen Ausbeuten und mit hohen __ee__βWerten erhalten. Derselbe Katalys