Poly(ethyleneoxide-b-styrene) copolymers as solid—liquid phase transfer catalysts
✍ Scribed by J. Kelly; C. McGowan; D.C. Sherrington; G. Riess
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 281 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0032-3861
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Summa'ry. Oligoether residues with terminal 8-quinolyl donor groups have been loaded virtually quantitatively onto polystyrene resin supports and function more effectively than dibenzo-18-crown-6 as solid/liquid phase transfer catalysts in Williamson ether syntheses. Oligoethylene oxide species are
)acrylamido]trimethyl ammonium chloride resin was developed as a new polymeric phase-transfer catalyst. This quaternized polyacrylamide catalyzed the regioselective ring opening of epoxides by thiocyanate ion to give thiocyanohydrins in high yields under mild conditions.
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