The invention related to a microreactor system for the continuous synthesis, which provides defined reaction chambers and conditions for said synthesis, as well as to the uses of said microreactor in carrying out a chemical reaction. According to said invention, (a) said mircoreactor system (11) is of modular design, (b) a processing unit (10) is made up of processing modules which are connected to each other by frictional engagement and (c) the fluid connections in said processing unit (10) can be obtained by the frictional connection of said processing modules.
