Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 19777-66-3, is researched, Molecular C3H12Cl2N2, about Synthesis of a water-soluble chiral NMR shift reagent: (S)-PDTA, the main research direction is alanine transformation chirality retention; PDTA water soluble chiral NMR shift reagent stereoselective preparation; propylenediamine tetraacetic acid stereoselective preparation.Reference of (S)-Propane-1,2-diamine dihydrochloride.
A five-step synthesis of the water-soluble chiral polydentate ligand, (S)-PDTA (I) starting from L-alanine has been worked out, via 5 steps with retention of chirality. The total yield is 50.7% (average of ∼88% for each step), while published methods report 33.4% total yield over four steps.
There is still a lot of research devoted to this compound(SMILES：C[C@H](N)CN.[H]Cl.[H]Cl)Reference of (S)-Propane-1,2-diamine dihydrochloride, and with the development of science, more effects of this compound(19777-66-3) can be discovered.
Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider