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A Novel Microencapsulated Osmium Catalyst Using Cross‐Linked Polystyrene as an Efficient Catalyst for Asymmetric Dihydroxylation of Olefins in Water
Author(s) -
Ishida Tasuku,
Akiyama Ryo,
Kobayashi Shū
Publication year - 2005
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.200505032
Subject(s) - dihydroxylation , chemistry , osmium , catalysis , polystyrene , organic chemistry , hydroxylation , enantioselective synthesis , ruthenium , polymer , enzyme
A novel microencapsulated osmium catalyst (PSresin‐MC Os) was developed using cross‐linked polystyrene. The concept of this method may go beyond that of microencapsulation. The catalyst was successfully used in asymmetric dihydroxylation in water, and it was recovered quantitatively by simple filtration and reused several times without loss of activity. The shape of the catalyst was maintained even after several uses. Moreover, no leaching of the Os component was detected.