How is 2-(Tert-butylamino)acetyl chloride hydrochloride (CAS: 915725-52-9) typically synthesized?

2-(Tert-butylamino)acetyl chloride hydrochloride is typically synthesized by the reaction of tert-butylamine with acetyl chloride. The desired product forms in high yield, with careful control of reaction conditions to ensure selectivity. Commonly, this involves the use of catalytic quantities of an acid like sulfuric acid to promote the reaction. The product is then isolated by recrystallization from an appropriate solvent.