Heterogeneous phase-transfer catalysts: onium salts, crown ethers, and cryptands immobilized on polymer supports
M Cinouini, S Colonna, H Molinari… - Journal of the …, 1976 - pubs.rsc.org
M Cinouini, S Colonna, H Molinari, F Montanari, P Tundo
Journal of the Chemical Society, Chemical Communications, 1976•pubs.rsc.org… Summary Typical phase-transfer catalysts, namely organophilic onium salts, crown ethers,
and cryptands, when immobilized on a polymer matrix retain most of their catalytic activity,
thus permitting catalyst recycling by simple filtration from the reaction medium. … In order to
exploit these advantages we bound some typical phase-transfer catalysts such as ammonium
and phosphonium saltsJ3 crown ethers,* and cryptandss to a polymer matrix. … (i) Reactions
with polymer-supported catalysts are relatively slower than those carried out in the presence …
and cryptands, when immobilized on a polymer matrix retain most of their catalytic activity,
thus permitting catalyst recycling by simple filtration from the reaction medium. … In order to
exploit these advantages we bound some typical phase-transfer catalysts such as ammonium
and phosphonium saltsJ3 crown ethers,* and cryptandss to a polymer matrix. … (i) Reactions
with polymer-supported catalysts are relatively slower than those carried out in the presence …
Typical phase-transfer catalysts, namely organophilic onium salts, crown ethers, and cryptands, when immobilized on a polymer matrix retain most of their catalytic activity, thus permitting catalyst recycling by simple filtration from the reaction medium.
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