Method for continuously synthesizing n-boc-2,5-dihydropyrrole

A method for continuously synthesizing N-Boc-2,5-dihydropyrrole, comprising the following steps:

• dissolving cis-1,4-dichloro-2-butene in an organic solvent, to obtain solution A;
• dissolving urotropine in an organic solvent, to obtain solution B;
• feeding the solution A and the solution B into a first continuous reaction device by using a continuous feeding system;
• transferring a product overflow system of the first continuous reaction device to a second continuous reaction device, and feeding a concentrated hydrochloric acid into the second continuous reaction device at the same time;
• transferring a product overflow system of the second continuous reaction device to a third continuous reaction device, and feeding a potassium carbonate into the third continuous reaction device at the same time;
• transferring a product overflow system of the third continuous reaction device to a fourth continuous reaction device, and feeding Boc acid anhydride solution into the fourth continuous reaction device at the same time;
• and
• performing continuous solid-liquid separation, concentration and distillation on a product of the fourth continuous reaction device, to obtain the N-Boc-2,5-dihydropyrrole.