Imperato, G. and König, B. (2008) Acceleration of Suzuki-Miyaura- and Stille-type coupling reactions by near UV-A light irradiation. ChemSusChem 1, 993 - 996.
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Irradiation of a palladium catalyst bearing UV-A-absorbing phosphine ligands with low-intensity UV-A light leads to higher conversions of reactants at lower temperatures and an increased selectivity towards the cross-coupling product in Suzuki-Miyaura- and Stille-type reactions. The examples studied illustrate that a selective energy input into the catalyst by irradiation leads to more selective conversions under milder reaction conditions. With the availability of affordable and energy-efficient UV-A LED light sources, selective heating of the catalyst by light can be envisaged as a general strategy to increase the performance of a catalyst.
|Institutions:||Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König|
|Keywords:||cross-coupling · palladium · phosphane ligands · photocatalysis · photochemistry|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||05 Mar 2009 11:55|
|Last Modified:||02 Dec 2010 15:35|
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