OPTICALLY ACTIVE QUATERNARY AMMONIUM SALTS BASED ON 8 <i>S,</i>9 <i>R </i>-(-)-CINCHONIDINE AND 4 <i>S,</i>5 <i>S</i>–(+)- <i> N <sup>4</sup></i>, <i>N <sup>4</sup></i>, <i>N <sup>5</sup></i>, <i>N <sup>5</sup></i>,2,2-HEXAMETHYL-1,3-DIOXOLANE-4,5-DIMETHANEAMINE (DIODMA)
Ionic type stabilizers for transition metal nanoparticles have been synthesized on the basis of natural alkaloid 8 S, 9 R -(-)-cinchonidine and optically active diamine 4 S,5 S –(+)- N <sup>4</sup>, N <sup>4</sup>, N <sup>5</sup>, N <sup>5</sup>,2,2-hexamethyl-1,3-dioxolane-4,5-dimethaneamine (DIODMA). The protonation sequence of nitrogen atoms in an alkaloid molecule has been determined on the basis of the analysis of <sup>1</sup>Н NMR spectra of the obtained compounds. The scheme of reaction behavior is proposed. Some physical and chemical constants have been received for the synthesized compounds.