- Synthesis, characterization, and catalytic activity of a new series of Ni(II), Cu(II), and Zn(II) complexes of N,N-O,O mixed-bidentate ligands for C–C cross-coupling reactions
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A new series of air stable transition metal(II) complexes [M(II)(L)(Phen)], [M(II)(L)(Pip)] (M = Ni, Cu, and Zn) (H2L = 2,2′-methylenebis(4-nitrophenol)) (Phen =1,10-phenanthroline) (Pip = Piperazine) has been synthesized by incorporating the metal ion with bisphenol and 1,10-phenanthroline/piperazine ligands. The prepared metal complexes were characterized by FT-IR, UV–vis, 1H NMR, EPR, and mass spectrometry. The metal(II) complexes were potent catalysts for Suzuki–Miyaura and Kumada–Corriu coupling of various aryl halides under optimized conditions.
- Vinoth, Govindasamy,Indira, Sekar,Bharathi, Madheswaran,Nandhakumar, Arumugam,Sathishkumar, Kannappan,Shanmuga Bharathi, Kuppannan
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- Hirshfeld surface analysis of substituted phenols
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The effect of para-substituents on the crystal packing of phenols has been investigated, for systems bearing nonpolar groups (tert-butyl and benzyl, compounds 1 and 2, respectively) and for methylene linked bis-phenol bearing polar nitro groups (compound
- Martin, Adam D.,Hartlieb, Karel J.,Sobolev, Alexandre N.,Raston, Colin L.
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- Supramolecular layers and versatile packing modes: The solid state behavior of ortho, ortho-linked bisphenols
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A series of ortho-ortho-linked bisphenols featuring electron-withdrawing groups (EWGs) attached to the phenolic rings is reported. Their respective molecular structures and packing behaviors have been studied by X-ray diffraction, comparatively discussed
- Augustin, André U.,Katzsch, Felix,Prior, Stephen H.,Gruber, Tobias
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p. 153 - 165
(2017/02/05)
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- PHOTO-RESPONSIVE LIQUID CRYSTALLINE COMPOUND AND ITS APPLICATIONS
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The purpose of the present invention is to provide novel liquid crystalline compounds that are capable of inducing phase transition by a light stimulus and are useful in the display, optoelectronics, and photonics field. The present invention relates to t
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Paragraph 0062
(2013/03/28)
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- Synthesis and characterization of new crown ethers of Schiff base type and their complexes
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New crown ether ligands of Schiff base type (4-11) have been synthesised by the reaction of two equivalents of benzaldehyde, 2-hydroxybenzaldehyde, 2,3-dihydroxybenzaldehyde, 5-methoxy-2-hydroxybenzaldehyde, 5-bromo-2- hydroxybenzaldehyde, 5-nitro-2-hydro
- Yildiz,Dülger,?inar
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p. 414 - 420
(2007/10/03)
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- Calixarenes with diphenylphosphoryl acetamide functions at the upper rim. A new class of highly efficient extractants for lanthanides and actinides
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Various calix[4]arene tetraalkyl ethers and a calix[5]arene pentaalkyl ether substituted at the upper rim by the CMPO-like functional group -NH-C(O)-CH2-P(O)Ph2 as well as some linear model compounds have been synthesized for the fir
- Arnaud-Neu, Francoise,Boehmer, Volker,Dozol, Jean-Francois,Gruettner, Cordula,Jakobi, Ralf A.,Kraft, Dagmar,Mauprivez, Olivier,Rouquette, Helene,Schwing-Weill, Marie-Jose,Simon, Nicole,Vogt, Walter
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p. 1175 - 1182
(2007/10/03)
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- THE SYNTHESIS OF ASYMMETRIC MACROCYCLIC POLYETHERS CONTAINING NITRO GROUP ON AROMATIC RING
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The macrocyclic polyether : 12,18-dinitro-2,5,8-trioxatricyclo(14,4,0,09,14)eicosa-1(20),9,11,13,16,18 hexaene (6): 15,21-dinitro-2,5,8,11-tetraoxatricyclo(17,4,0,012,17)tricosa-1(23),12,14,16,19,21-hexaene (7) and 18,24-dinitro-2,5,8,11,14-pentaoxatricyclo)20,4,0,015,20)hexacosa-1(26),15,17,19,22,24-hexaene (8) have been synthesized by reaction of 2,2'-methylenebis(4-nitrophenol) (1) with diethylene glycol ditosylate (3) triethylene glycol ditosylate (4) and tetraethylene glycol ditosylate (5) respectively in the presence of KOBu-t.These compounds did not form stable complexes with alkali and alkaline-earth cations.The macrocyclic polyethers were purified by chromatoraphy and crystallization.The structure of these new compounds have been determined by elemental analysis, molecular weight determination, 1H NMR, IR and UV spectra.
- Kilic, Zeynel,Guenduez, Necla
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p. 137 - 142
(2007/10/02)
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