Thermomorphic fluorous phosphines as organocatalysts for Michael addition reactions
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The fluorous phosphines P[(CH2)mRfn]3 (Rfn = (CF2) n-1CF3; m/n = 2/8, 3/8, 3/10) are efficient nucleophilic catalysts of Michael addition reactions. They can be easily recycled based upon their highly temperature-dependent solubilities (thermomorphism), with recovery by simple liquid/solid phase separation. The phosphonium salt formed by reaction of the nucleophilic phosphine with the ,-unsaturated system appears to be a significant component of the catalyst rest state. 2010 Elsevier Ltd. All rights reserved.
author list (cited authors)
Gimbert, C., Vallribera, A., Gladysz, J. A., & Jurisch, M.
complete list of authors
Gimbert, Carolina||Vallribera, Adelina||Gladysz, John A||Jurisch, Markus