Mild and selective heterogeneous catalytic hydration of nitriles to amides by flowing through manganese dioxide

ol-2013-03591c_0009

Mild and selective heterogeneous catalytic hydration of nitriles to amides by flowing through manganese dioxide

C. Battilocchio, J.M. Hawkins, S.V. Ley, Org. Lett. 2014, 16, 1060-1063.

Innovative Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge U.K.
Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
Org. Lett., 2014, 16 (4), pp 1060–1063
DOI: 10.1021/ol403591c
A sustainable flow chemistry process for the hydration of nitriles, whereby an aqueous solution of the nitrile is passed through a column containing commercially available amorphous manganese dioxide, has been developed. The product is obtained simply by concentration of the output stream without any other workup steps. The protocol described is rapid, robust, reliable, and scalable, and it has been applied to a broad range of substrates, showing a high level of chemical tolerance.

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