Nanoengineering heterogeneous catalysts for the selective hydrogenation of key agrochemical derivatives

Scott Board, Karen Wilson, Adam Lee

Research output: Contribution to journalConference abstract

Abstract

Rapidly rising world populations have sparked growing concerns over global food production to meet this increasing demand. Figures released by The World Bank suggest that a 50 % increase in worldwide cereal production is required by 2030. Primary amines are important intermediates in the synthesis of a wide variety of fine chemicals utilised within the agrochemical industry, and hence new 'greener' routes to their low cost manufacture from sustainable resources would permit significantly enhanced crop yields. Early synthetic pathways to primary amines employed stoichiometric (and often toxic) reagents via multi-step protocols, resulting in a large number of by-products and correspondingly high Environmental factors of 50-100 (compared with 1-5 for typical bulk chemicals syntheses). Alternative catalytic routes to primary amines have proven fruitful, however new issues relating to selectivity and deactivation have slowed commercialisation. The potential of heterogeneous catalysts for nitrile hydrogenation to amines has been demonstrated in a simplified reaction framework under benign conditions, but further work is required to improve the atom economy and energy efficiency through developing fundamental insight into nature of the active species and origin of on-stream deactivation. Supported palladium nanoparticles have been investigated for the hydrogenation of crotononitrile to butylamine (Figure 1) under favourable conditions, and the impact of reaction temperature, hydrogen pressure, support and loading upon activity and selectivity to C=C versus CºN activation assessed.
Original languageEnglish
Article number162-CATL
JournalAbstracts of Papers of the American Chemical Society
Volume248
Publication statusPublished - 10 Aug 2014
Event248th National Meeting of the American-Chemical-Society - San Francisco, CA, United States
Duration: 10 Aug 201414 Aug 2014

Bibliographical note

248th National Meeting of the American-Chemical-Society (ACS), San Francisco, CA (US), 10-14 AUG, 2014.

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    • 3 Conference abstract

    Designing nanoparticulate photocatalysts for the destruction of recalcitrant organic contaminants in wastewater

    Wilson, K., Thuy, U. T. D., Liem, N. Q. & Barbero, B., 10 Aug 2014, In : Abstracts of Papers of the American Chemical Society. 248, 325-ENVR.

    Research output: Contribution to journalConference abstract

    Rational design of heterogeneous catalysts for the selective aerobic oxidation of alcohols

    Lee, A., Parlett, C., Wilson, K., Zeinalipour-Yazdi, C. D. & Wilcock, D., 10 Aug 2014, In : Abstracts of Papers of the American Chemical Society. 248, 111-CATL.

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    Tuning sulfated zirconia for the selective conversion of bioderived molecules

    Wilson, K., Osatiashtiani, A., Lee, A., Melero, J. A. & Morales, G., 10 Aug 2014, In : Abstracts of Papers of the American Chemical Society. 248, 121-CATL.

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