Electrochemically Mediated Carboxylative Cyclization of Allylic/Homoallylic Amines with CO 2 at Ambient Pressure.

CO 2 is an important C1 resource. We report a method for the synthesis of pharmacologically active 2-oxazolidinones by reacting CO 2 with allylic amines. As opposed to previous addition reactions, the unsaturated double bonds are preserved. Thus, the product is more plastic and easier to use for subsequent structural modification. Furthermore, this method can also be applied to the synthesis of six-membered heterocycles (1,3-oxazinan-2-ones) and the participation of a low concentration of CO 2 , indicating it has certain practicability.