Simple indium and zinc salts have been successfully used as catalysts for the rearrangement of oximes into primary amides. The direct synthesis of nitriles or primary amides from aldehydes has also been demonstrated using these inexpensive catalysts.
Allen, C. L., Burel, C., & Williams, J. M. J. (2010). Cost efficient synthesis of amides from oximes with indium or zinc catalysts. Tetrahedron Letters, 51(20), 2724-2726. https://doi.org/10.1016/j.tetlet.2010.03.048