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Epoxidation of styrene catalyzed by metal complexes of poly(vinylbenzyl)acetylacetonate
Author(s) -
Yan YuanYong,
Yang Wei,
Wang TieJun,
Huang MeiYu,
Jiang YingYan
Publication year - 1996
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(199608)7:8<729::aid-pat575>3.0.co;2-s
Subject(s) - isobutyraldehyde , styrene , catalysis , cobalt , yield (engineering) , aldehyde , styrene oxide , materials science , polymer chemistry , metal , methyl methacrylate , oxide , cobalt oxide , organic chemistry , chemistry , copolymer , polymer , metallurgy
The epoxidation of styrene to styrene oxide at higher than 96% yield has been achieved by the catalysis by poly‐(vinylbenzyl)acetylacetonate complexes of cobalt(II) or manganese(II) in the presence of isobutyraldehyde under an atmospheric pressure of molecular oxygen at room temperature. The kind of aldehyde and aldehyde/styrene molar ratio greatly influenced the reaction. The catalyst could be recycled, but after recycling for five times, the yield of styrene oxide decreased from 96.0% to 84.6%.