Novel environmental catalysts were prepared from the reaction of Cu (II), Fe(III) and Pd(II) ions with some pyranothiazole ligands (PTP, MPTP and CPTP) were synthesized. Bi-dentate pyranothiazole ligands (PTP, MPTP and CPTP) were synthesized by reaction of (Benzaldehyde, 4-methoxybenzaldehyde or 4-chlorobenzaldehyde), malononitrile, 2, 4-thiazolidinedione and piperidine. Structures of all the investigated ligands were characterized by their melting points, 1H NMR, ...
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