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A Recyclable Catalytic System Based on a Temperature‐Responsive Catalyst
Author(s) -
Hamamoto Hiromi,
Suzuki Yachiyo,
Yamada Yoichi M. A.,
Tabata Hidetsugu,
Takahashi Hideyo,
Ikegami Shiro
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200500574
Subject(s) - catalysis , phosphotungstic acid , aqueous solution , polymer , chemical engineering , chemistry , aqueous medium , organic chemistry , materials science , polymer chemistry , engineering
A new concept for catalytic reactions in aqueous media is demonstrated by using a temperature‐responsive polymer support, poly( N‐ alkylacrylamide), which is converted into a catalyst by assembly with phosphotungstic acid. At high temperature, the catalyst is highly active in the oxidation of alcohols with H 2 O 2 owing to the formation of emulsions, whereas the product and catalyst are easily separated at low temperature (see scheme).