SYNTHESIS AND CHARACTERIZATION OF CHIRAL Cu(II), Co(II), Ni(II) COMPLEXES OF N,N’-BIS(3-TERT-BUTYLSALICYLIDENE)-(R,R)-1,2-CYCLOHEXANEDIAMINE AND N,N’-BIS(3,5-DI-TERT-BUTYLSALICYLIDENE)-(R,R)-1,2-CYCLOHEXANEDIAMINE
Nguyễn Tiến Dũng
Ngô Hạnh Thương
Nguyễn Quang Trung
Nguyễn Văn Tuyến
Đoàn Duy Tiên
Đặng Thị Tuyết Anh
Lê Nhật Thùy Giang
Abstract
In this research we synthesis salicylaldehyde derivatives from the Reimer tiemann reaction of phenol derivatives and chloroform in ethanol and sodium hydroxide solution 30%. After this, we synthesized salen ligand from the condensation reaction of (R,R)-1,2-cyclohexanediamine and salicylaldehyde derivatives. And then, complexes were synthesized from ligands and transition metals including Cu(II), Co(II), Ni(II). Synthesized compounds were characterized by IR, UV-vis, ESI-LC/MS, 1H-NMR. The obtained result showed that the complexes were true. The central metals linked to N and O and H+ was separated from OH group.