Amorphous silica and crystalline silicalite (MFI structure) are demonstrated to be active and environmentally benign catalysts for propionic acid ketonisation at 450–500 °C to form 3-pentanone. The silicalite is particularly efficient, and its ketonisation selectivity is increased by base modification probably through generation of silanol nests.
H. Bayahia, E. Kozhevnikova and I. Kozhevnikov, Chem. Commun., 2013, 49, 3842 DOI: 10.1039/C3CC41161C
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