Subscribe to RSS
Please copy the URL and add it into your RSS Feed Reader.
https://www.thieme-connect.de/rss/thieme/en/10.1055-s-00000131.xml
Synfacts 2005(1): 0173-0173
DOI: 10.1055/s-2005-916000
DOI: 10.1055/s-2005-916000
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York
A Thermomorphic Polymeric Catalyst for Alcoholic Oxidation
H. Hamamoto, Y. Suzuki, Y. M. A. Yamada, H. Tabata, H. Takahashi, S. Ikegami*
Teikyo University, Japan
Further Information
Publication History
Publication Date:
21 September 2005 (online)
Significance
Aquacatalytic oxidation of secondary and primary alcohols using a thermomorphic PNIPAAm polymer-supported phosphotungstate under emulsive conditions is described. The oxidation of secondary alcohols was carried out with 1.5 equivalents of a 10% aqueous H2O2 solution in the presence of the catalyst (0.1-0.2 mol%) at 90 ºC to give the corresponding ketones in 88-93% yield (5 entries). The oxidation of primary alcohols gave the corresponding carboxylic acids in 84-89% yield (2 entries). The catalyst was recycled and reused three times.