How is 3-(4-Methoxyphenyl)pyrrolidine hydrochloride (CAS: 91246-25-2) typically synthesized?

3-(4-Methoxyphenyl)pyrrolidine hydrochloride is commonly synthesized via a multi-step process starting from 4-methoxybenzaldehyde and pyrrolidine. The reaction involves the initial condensation followed by reduction and final protonation. This process requires careful control of pH and temperature to ensure high yield and selectivity. Catalysts such as palladium or rhodium complexes are used to enhance the reaction efficiency.