Journal
CATALYSIS TODAY
Volume 132, Issue 1-4, Pages 153-158Publisher
ELSEVIER
DOI: 10.1016/j.cattod.2007.12.078
Keywords
N-alkylation; photocatalytic reaction; microreaction system
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A photocatalytic microreaction system was developed and photocatalytic N-alkylation process of benzylamine, aniline, and pipelidine was examined. The reaction proceeded quite rapidly in the microreactors with immobilized Pt-free TiO2 as well as Pt-loaded TiO2, while it has been reported that the N-alkylation did not occur by the irradiation of Pt-free TiO2 in conventional batch reactors. It was revealed that by using the unique features of the continuous-flow microreactor, for instance spatial illumination homogeneity and precise control of flow and irradiation conditions, one can control the selectivity of N-alkylation and N,N-dialkylation processes. These results suggest the possibilities of a photocatalytic microreaction system on organic synthetic reactions. (C) 2007 Elsevier B.V. All rights reserved.
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