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Highly selective reduction of nitroarenes by sc-isopropanol in the presence of zirconia in a flow reactor Full article

Journal Journal of Supercritical Fluids
ISSN: 0896-8446 , E-ISSN: 1872-8162
Output data Year: 2018, Volume: 140, Pages: 233-237 Pages count : 5 DOI: 10.1016/j.supflu.2018.06.021
Tags Hydrogen transfer; Alcohol; Flow-type reactor; Catalysis; Supercritical isopropanol; Nitrobenzene; Aniline; Zirconia
Authors Anikeev V., I 1 , Sivcev V.P. 1 , Valeev K.R. 1 , Volcho K.P. 2,3 , Sadykov V.A. 1,3 , Salakhutdinov N.F. 2,3
Affiliations
1 (Данные Web of science) Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Prosp Akad Lavrenteva 5, Novosibirsk 630090, Russia
2 (Данные Web of science) Russian Acad Sci, Vorozhtsov Novosibirsk Inst Organ Chem, Siberian Branch, Prosp Akad Lavrenteva 9, Novosibirsk 630090, Russia
3 (Данные Web of science) Novosibirsk State Univ, Pirogova St 2, Novosibirsk 630090, Russia

Abstract: Reduction of nitroarenes using supercritical isopropanol as a source of hydrogen was studied in a flow reactor in the presence of zirconia at temperatures of 515 - 630 K and with residence time about 10 min. Zirconia was shown for the first time to be an effective and selective catalyst for transfer hydrogenation of nitroarenes. The use of complex supercritical fluid IPrOH/CO2 provided 100% selectivity for aniline at 95% conversion of nitrobenzene. In the absence of CO2, the selectivity was reduced due to formation of alkoxylation and N-alkylation by-products. The system can also be used for highly selective reduction of bromonitrobenzene avoiding undesired hydrodehalogenation.
Cite: Anikeev V.,.I. , Sivcev V.P. , Valeev K.R. , Volcho K.P. , Sadykov V.A. , Salakhutdinov N.F.
Highly selective reduction of nitroarenes by sc-isopropanol in the presence of zirconia in a flow reactor
Journal of Supercritical Fluids. 2018. V.140. P.233-237. DOI: 10.1016/j.supflu.2018.06.021 WOS Scopus РИНЦ
Dates:
Published print: Oct 1, 2018
Identifiers:
Web of science WOS:000446284200023
Scopus 2-s2.0-85049354352
Elibrary 35730794
OpenAlex W2809807403
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