How is 5-(Methylsulfanyl)pentanenitrile (CAS: 59121-25-4) typically synthesized?

5-(Methylsulfanyl)pentanenitrile is typically synthesized via the reaction of methyl mercaptan and pentanenitrile in the presence of an appropriate catalyst. The process involves the substitution of a methyl group at the sulfur position of the mercaptan with the nitrile group, yielding a high yield of the desired compound with good selectivity.