Preparation of 4-Dimethylaminopyridine(DMAP)and DMAP-catalyzed Organic Reaction;
4－二甲氨基吡啶的合成及其催化的有机反应
An improved process for producing 4-dimethylaminopyridine(4-DMAP)from pyridinyl-pyridinium was provided.
对双吡啶盐法合成4-二甲氨基吡啶(4-DMAP)工艺进行了改进,回收了未反应的原料吡啶;同时改进了精制工艺,用石油醚-苯进行结晶代替高真空蒸馏,简化了工艺,有利于工业化生产。