Trialkyl borate assisted amination of fluorinated 1,3-diketones for synthesis of N,N′-1,2-phenylen-bis(β-aminoenones) and their Ni(II), Cu(II) and Pd(II) complexes
“…Bidentate enaminones with a fluoroalkyl moiety are known to some extent, whereas tetradentate ligands and their metal complexes are less studied. [36,37] The structural variations of the reported Figure 2. Bidentate ligands L1H-L7H.…”
Keywords: Electrochemistry / UV/Vis spectroscopy / Copper / FluorineNew polyfunctional bidentate and tetradentate trifluoromethylated enaminone ligands that bear redox-active and photosensitive moieties were synthesized in moderate to good yields and their coordination chemistry with copper(II) was examined. The crystal structures revealed the formation of mononuclear Cu II complexes with all ligands, where the metal ion is located in almost perfect to distorted square planar environments. The deviation from an ideal square
“…Bidentate enaminones with a fluoroalkyl moiety are known to some extent, whereas tetradentate ligands and their metal complexes are less studied. [36,37] The structural variations of the reported Figure 2. Bidentate ligands L1H-L7H.…”
Keywords: Electrochemistry / UV/Vis spectroscopy / Copper / FluorineNew polyfunctional bidentate and tetradentate trifluoromethylated enaminone ligands that bear redox-active and photosensitive moieties were synthesized in moderate to good yields and their coordination chemistry with copper(II) was examined. The crystal structures revealed the formation of mononuclear Cu II complexes with all ligands, where the metal ion is located in almost perfect to distorted square planar environments. The deviation from an ideal square
Complexes. -(CHIZHOV*, D. L.; PERVOVA, M. G.; SAMORUKOVA, M. A.; KHMARA, E. F.; FILYAKOVA, V. I.; SALOUTIN, V. I.; CHARUSHIN, V. N.; J. Fluorine Chem. 132 (2011) 6, 394-401, http://dx.
New synthetic routes to trifluoromethylated N‐heterocycles based on condensations of 2‐methoxy‐2‐methyl‐5‐(trifluoromethyl)furan‐3(2H)‐one with bifunctional N‐nucleophiles are described. For the first time, trifluoromethyl‐containing pyrazoles, pyrazolines and isoxazolines bearing hydrazone or oxime groups could be obtained by a one‐pot strategy based on reactions of 5‐(trifluoromethyl)furan‐3(2H)‐one with two equivalents of the corresponding hydrazines or hydroxylamine in the presence of an acid. The interaction of furan‐3(2H)‐one with ureas proceeded under mild conditions to furnish 1H‐furo[2,3‐d]imidazol‐2(3H)‐one derivatives in good yield. Further, a trifluoromethyl‐containing quinoxaline derivative was obtained by condensation of furan‐3(2H)‐one with ortho‐phenylenediamine.
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