How is Methyl 3-chloroalaninate hydrochloride (CAS: 33646-31-0) typically synthesized?

Methyl 3-chloroalaninate hydrochloride (CAS: 33646-31-0) is typically synthesized by the reaction of methylamine and 3-chloroacryloyl chloride. The synthesis involves the use of a catalytic amount of a strong acid like hydrochloric acid to facilitate the reaction. The yield is generally high, and the product is purified by recrystallization from water or a suitable solvent.