Abstract
The selective reduction of a nitro group when other reducible functions are present is a difficult process that often requires stoichiometric amounts of reducing agents or, if H 2 is used, the addition of soluble metals. Gold nanoparticles supported on TiO 2 or Fe 2 O 3 catalyzed the chemoselective hydrogenation of functionalized nitroarenes with H 2 under mild reaction conditions that avoided the accumulation of hydroxylamines and their potential exothermic decomposition. These chemoselective hydrogenation gold catalysts also provide a previously unknown route for the synthesis of the industrially relevant cyclohexanone oxime from 1-nitro-1-cyclohexene.
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- We thank the World Gold Council for supplying the gold catalysts that were used as well as for the corresponding transmission electron microscopy images and F. Sánchez M. Iglesias and C. González-Arellano for useful comments. This work was supported by Ministerio de Educación y Ciencia (grant MAT2003-07945-C02-01).
Dates
Type | When |
---|---|
Created | 19 years, 1 month ago (July 20, 2006, 5:12 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 9, 2024, 11:15 p.m.) |
Indexed | 2 weeks, 1 day ago (Aug. 7, 2025, 4:56 p.m.) |
Issued | 19 years, 1 month ago (July 21, 2006) |
Published | 19 years, 1 month ago (July 21, 2006) |
Published Print | 19 years, 1 month ago (July 21, 2006) |
@article{Corma_2006, title={Chemoselective Hydrogenation of Nitro Compounds with Supported Gold Catalysts}, volume={313}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1128383}, DOI={10.1126/science.1128383}, number={5785}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Corma, Avelino and Serna, Pedro}, year={2006}, month=jul, pages={332–334} }