How is 3-(1-Pyrrolidinyl)-1-propanamine (CAS: 23159-07-1) typically synthesized?

3-(1-Pyrrolidinyl)-1-propanamine is typically synthesized via the reaction of 1-propanamine with pyrrolidone in the presence of a base such as sodium hydride. The process provides good yield and selectivity, with the key steps involving protonation and subsequent ring formation. Detailed procedures and experimental conditions are available in the literature.