Catalytic Asymmetric Dihydroxylation Using Phenoxyethoxymethyl-polystyrene (PEM)-Based Novel Microencapsulated Osmium Tetroxide (PEM-MC OsO4)
A phenoxyethoxymethyl-polystyrene (PEM)-based novel polymer-supported osmium catalyst has been developed. The catalyst was readily prepared from PEM polymer based on a microencapsulation technique, and asymmetric dihydroxylation of olefins has been successfully performed using (DHQD)2PHAL as a chira...
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Published in | Organic letters Vol. 3; no. 17; pp. 2649 - 2652 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
WASHINGTON
American Chemical Society
23.08.2001
Amer Chemical Soc |
Subjects | |
Online Access | Get full text |
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Summary: | A phenoxyethoxymethyl-polystyrene (PEM)-based novel polymer-supported osmium catalyst has been developed. The catalyst was readily prepared from PEM polymer based on a microencapsulation technique, and asymmetric dihydroxylation of olefins has been successfully performed using (DHQD)2PHAL as a chiral ligand and K3Fe(CN)6 as a cooxidant in H2O/acetone. The catalyst was recovered quantitativery by simple filtration and reused without loss of activity several times. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1523-7060 1523-7052 |
DOI: | 10.1021/ol0161965 |