期刊
CHEMSUSCHEM
卷 1, 期 12, 页码 993-996出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.200800187
关键词
cross-coupling; palladium; phosphane ligands; photocatalysis; photochemistry
资金
- University of Regensburg
- Deutsche Forschungsgemeinschaft
- Fonds der Chemischen Industrie
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 on 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.
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