How is Propionitrile (CAS: 1070-71-9) typically synthesized?

Propionitrile is synthesized by the reaction of propylene with ammonia in the presence of a rhodium catalyst under high pressure. The process typically involves the partial reduction of propionamide to propionitrile. The yield is around 70-80%, and the selectivity towards propionitrile is high due to the use of a suitable catalyst. This method ensures a high-quality product with good purity.