Add time:08/29/2019         Source:sciencedirect.com

The reactions of 1’-(diphenylphosphino)-1-(hydrazinylcarbonyl)ferrocene, Ph2PfcCONHNH2 (1; fc = ferrocene-1,1′-diyl), with HNCO, EtNCO, PhNCO, Me2NC(O)Cl/pyridine, and Ac2O/NEt3 produced the corresponding N-functionalized derivatives Ph2PfcCONHNHC(O)Y (1a-e), where Y = NH2 (a), NHEt (b), NHPh (c), NMe2 (d), and Me (e). Compounds 1a-e were used as ligands (L) to prepare Pd(II) bis(phosphine) complexes [PdCl2(L-κP)2] (3a-e) and two series of Pd(II) complexes bearing an auxiliary 2-[(dimethylamino-κN)methyl]phenyl-κC1 (LNC) ligand, namely, [(LNC)PdCl(L-κP)] (4a-e) and [(LNC)Pd(L-κ2O,P)][SbF6] (5a-e). The crystal structures of compounds 1a, 1c, 1e, the phosphine oxide of 1e (i.e., compound 2e), and complexes 3c·4CH2Cl2·2CH3OH, 3e·4CH3OH, 4e, and 5e·2.5CHCl3 were determined by single-crystal X-ray diffraction analysis. Hydrogen bonding interactions observed in the solid-state structures of these compounds are discussed.

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