How is 3-Methoxy-4-morpholinoaniline dihydrochloride (CAS: 1226776-91-5) typically synthesized?

3-Methoxy-4-morpholinoaniline dihydrochloride is synthesized by the reaction of 3-methoxy-4-morpholinoaniline with hydrochloric acid. The reaction is typically carried out under mild conditions, and the product can be isolated by crystallization from an appropriate solvent. The yield and selectivity are good, and the reaction is usually performed under normal pressure and temperature conditions.