Amino acids are chiral compounds that make up proteins and play an important role in biochemical processes in living organisms. They are widely used as building blocks in organic synthesis, components of asymmetric synthesis catalysts, separating agents, etc. To this end, we found that the interaction of 1 mol aminoethanic acid with 2 mol of (β-chlor)allyl chloride in an aqueous solution of sodium hydroxide leads to the formation of a new monomer – N,N-di(β-chlor)allylamino ethanic acid (BEA) with a yield of 45%. When carrying out the polymerization of BEA in an aqueous solution in the presence of ammonium persulfate with an initiator concentration of 4·10^-4–5·10^-3 mol/l , water-soluble polymers with sufficiently high values of reduced viscosity  ([η] = 0.16–0.18 dl/q)  for the indicated amino acid were obtained. It was found that polymerization proceeds along the double bonds of diallyl groups according to the cyclolinear mechanism with a pyrrolidine structure

doi.org/10.32737/0005-2531-2023-2-13-18