Preparation of the title compound was finished in the same pot. Pyridine,thionyl chloride and dimethylamine hydrochloride were used as the primary materials.The yield was about 13.3%.

• 以吡啶、氯化亚砜、二甲胺盐酸盐为主要原料，＂一勺烩＂工艺合成高效酰化催化剂4-二甲氨基吡啶，收率达到13．3%25。