Synthesis, characterization and solid-state CD spectra of the chiral bisferrocenyl ligands
- 化学化工－已发表论文 
A pair of novel chiral tetradentate bisferrocenyl ligands [N,N '-bisferrocenyimethyl-N,N '-bis(2hydroproxypyl)- (1R, 2R)-1,2-diphenylethane-diamine(5R), N,N '-bisferrocenylmethyl-N,N '-bis(2-hydroxypropyl)-(1S, 2S)-1,2-diphenylethane diamine (5S)] were synthesized from ferrocenylcarboxaldehyde (1) and chiral 1,2-diphenylethanediamine (2R or 2S) followed by the reduction of the Schiff bases with NaBH4 and subsequent N-alkylation with 1,2-propyleneoxide. All the chiral products (3R-5S) were charactered by elemental analysis, infrared (IR), H-1 nuclear magnetic resonance (H-1 NMR), ultraviolet-visible (UV-Vis) and solid-state circular dichroism (CD) spectra. The solidstate CD spectra reveal that the chiral characteristics of 5R (or 5S) are quite similar with 4R (or 4S) and it is also notable that there are some differences between 5R (or 5S) and 3R (or 3S).