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Synfacts 2020; 16(02): 0193
DOI: 10.1055/s-0039-1691552
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York

Selective Hydrogenation of Nitroarenes Catalyzed by Nanostructured Tungsten Disulfide

Rezensent(en):
Yasuhiro Uozumi
,
Shun Ichii
Sun Y, Darling AJ, Li Y, Fujisawa K, Holder CF, Liu H, Janik MJ, Terrones M, Schaak RE. * The Pennsylvania State University, University Park, USA
Defect-Mediated Selective Hydrogenation of Nitroarenes on Nanostructured WS2 .

Chem. Sci. 2019;
10: 10310-10317
CrossrefPubMedSuche in Google Scholar
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Publikationsverlauf

Publikationsdatum:
21. Januar 2020 (online)

 
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Key words

tungsten catalysis - hydrogenation - nitroarenes - chemoselectivity - anilines

Significance

Nanostructured tungsten disulfide (2H-WS2) catalyzed the selective hydrogenation of nitroarenes in the presence of other reducible functional groups under H2 (50 bar) to give the corresponding anilines exclusively in >99% conversions with 78 to >99% selectivities.


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Comment

The preparation of 2H-WS2 was previously reported (B. Mahler, V. Hoepfner, K. Liao, G. A. Ozin J. Am. Chem. Soc. 2014, 136, 14121). In the hydrogenation of 1-nitro-3-vinylbenzene, the catalyst was reused four times without a significant decline in conversion, whereas the selectivity increased during the recycling experiment (fresh: 94% selectivity; 4th reuse: >99% selectivity).


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