How is 3-Methylcyclobutanamine hydrochloride (CAS: 89381-07-7) typically synthesized?

3-Methylcyclobutanamine hydrochloride is typically synthesized by the reaction of 3-methylcyclobutanamine with hydrochloric acid. The process involves the protonation of the amine group, followed by the removal of the hydrochloride ion. Commonly used solvents include methanol or ethanol. The yield and selectivity can be optimized by controlling reaction conditions such as temperature and concentration.