Acting up with nitriles: A monovacant lacunary silicotungstate, TBA4[α-H4SiW11O39] (I) could act as an efficient heterogeneous catalyst for dehydration of primary amides. Various kinds of primary amides, including benzylic, double bond-containing, heteroaromatic, and aliphatic could be converted into the corresponding nitriles in moderate to excellent yields.
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