Synthesis and characterization of new ferrocenyl bishydrazones

New ferrocenyl bishydrazones (2a–2d) have been efficiently obtained from 1,1′-ferrocenedicarboxaldehyde by a straightforward synthesis. The four new compounds have been fully characterized by NMR (1H, 13C), high-resolution mass spectroscopy, and the molecular structure of compounds (2a–2d) has been elucidated by X-ray diffraction on single crystals.