SEARCH Articles Figures Tables Chiral quaternary centers, enantioselective synthesis Quaternary ammonium salts synthesis Quaternary carbon synthesis Quaternary center synthesis Quaternary centers synthesis via Ireland rearrangement Quaternary centers, asymmetric synthesis Quaternary centres, asymmetric synthesis Quaternary ceramics, synthesis Quaternary oxides, synthesis Synthesis and Antibacterial Properties of Polysiloxanes-bearing Quaternary Ammonium Salt Groups Synthesis of Quaternary Ammonium Salts Synthesis of quaternary benzo phenanthridine Synthesis of the azacrown ether-type quaternary ammonium salt