Journal
CHEMSUSCHEM
Volume 5, Issue 2, Pages 332-338Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201100370
Keywords
gallium; heterogeneous catalysis; lewis acids; microreactors; strecker reaction
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In light of the growing interest in the use of rare earth metal triflates as water-tolerant Lewis acid catalysts, we embarked upon the development of a solid-supported gallium triflate (PS-Ga(OTf)2) derivative as a means of increasing the cleanliness and cost effectiveness of using these increasingly expensive catalytic materials in synthetic processes. Having previously highlighted the advantages associated with coupling solid-supported catalysis and the emerging area of micro-reaction technology, we screened PS-Ga(OTf)2 for activity towards the ketonic Strecker reaction, in which the target a-aminonitriles were obtained in higher yield and purity compared to reactions reported in literature, in which the analogous homogeneous catalyst was used.
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