The role of carbon dioxide in chemoselective hydrogenation of halonitroaromatics over supported noble metal catalysts in supercritical carbon dioxide |
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| Authors: | Ichikawa Shinichiro Tada Mizuki Iwasawa Yasuhiro Ikariya Takao |
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| Institution: | Graduate School of Science and Engineering and Frontier Collaborative Research Center, Tokyo Institute of Technology and Joint Research Center for Supercritical Fluids, Japan Chemical Innovation Institute, O-okayama, Meguro-ku, Tokyo 152-8552, Japan. |
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| Abstract: | Chemoselective hydrogenation of halogenated nitrobenzenes over Pt/C catalysts proceeds effectively in supercritical carbon dioxide (scCO2) to produce halogenated anilines with excellent selectivity; the rate of the hydrogenation of nitro groups is markedly enhanced in scCO2 compared to the neat reaction, and the dehalogenation reaction is significantly suppressed. |
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