Hetero-Diels–Alder reaction of halogenated quinones with a polygodial-derived azadiene
作者:Mauricio A. Cuellar、Luz K. Alegrı́a、Yolanda A. Prieto、Manuel J. Cortés、Ricardo A. Tapia、Marcelo D. Preite
DOI:10.1016/s0040-4039(02)00246-0
日期:2002.3
The reaction between polygodial dimethylhydrazone and haloquinones under an air atmosphere is described. The terpene moiety undergoes a degradative oxidation to an 11-norsequiterpene ketone containing a quinolinequinone skeleton.
Synthesis, structure and properties of ruthenium(II) complexes with quinolinedione derivatives as chelate ligands: Crystal structure of [Ru(CO)2Cl2(6-methoxybenzo[g]quinoline-5,10-dione)]
作者:Yolanda Prieto、Marcelo Muñoz、Verónica Arancibia、Mauricio Valderrama、Fernando J. Lahoz、M. Luisa Martín
DOI:10.1016/j.poly.2007.08.014
日期:2007.11
The reaction of the dimer complex [Ru(CO)(3)Cl-2}(2)] with the ligands 4,6-dichloroquinoline-5,8-dione and 6-methoxybenzo[g]quinoline-5, 10-dione in ethanol solution led to the neutral mononuclear complexes of general formula [Ru(CO)(2)Cl-2(kappa(2)-quinolinedione-N,O)]. The complexes were characterized by elemental analysis, IR and RMN spectroscopy, and the molecular structure of [Ru(CO)(2)Cl-2(6-methoxybenzo[g]quinoline-5,10-dione)] was determined by single-crystal X-ray diffraction. The redox chemistry of ligands and complexes was investigated by cyclic voltammetry, and their potential antitumor activity was also evaluated. (C) 2007 Elsevier Ltd. All rights reserved.