Browsing by Author "Kayan, Cezmi"
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Aminophosphine ligands: synthesis, coordination chemistry, and activity of their palladium(II) complexes in Heck and Suzuki cross-coupling reactions
Kayan, Cezmi; Biricik, Nermin; Aydemir, Murat (Springer, 2011)The reaction of 4-aminodiphenylamine or 2-aminofluorene with two equivalents of PPh2Cl in the presence of Et3N gives new bis(diphenylphosphino) amines N,N-bis(diphenylphosphino)-4-aminodiphenylamine 1 and N, N-bis(diphen ... -
Application of half-sandwich metal-phosphinite compounds to biological activities: Determine the energies of the HOMO and LUMO levels
Meriç, Nermin; Rafikova, Khadichakhan; Zazybin, Alexey; Güzel, Remziye; Kayan, Cezmi; Karakas, Duygu Elma; Dündar, Abdurrahman; Aydemir, Murat (Wiley-V C H Verlag Gmbh, 2023)Mononuclear transition metal complexes 1-(furan-2-yl)ethyldiphenyl[dichloro(eta(6)-p-cymene)ruthenium(II)]phosphinite, (2), 1-(furan-2-yl)ethyldiphenyl[dichloro(eta(6)-benzene) ruthenium(II)] phosphinite (3), 1-(furan-2- ... -
Asymmetric transfer hydrogenation of acetophenone derivatives with novel chiral phosphinite based ?6-p-cymene/ruthenium(II) catalysts
Aydemir, Murat; Meric, Nermin; Baysal, Akin; Turgut, Yilmaz; Kayan, Cezmi; Seker, Sevil; Togrul, Mahmut (Elsevier Science Sa, 2011)Enantioselective reduction of prochiral ketones to optically active secondary alcohols is an important subject in synthetic organic chemistry because the resulting chiral alcohols are extremely useful, biologically active ... -
Bazı yeni schiff bazı ligandların hazırlanması ve özelliklerinin spektroskopik yöntemlerle incelenmesi
Kayan, Cezmi (2016)Schiff bazları ve metal komplekslerinin sentezlenmesi son yıllarda daha da önem kazanmıştır. Bu önem değişik nedenlerden kaynaklanıyor. Bazı biyolojik işlemlerde önemli bir rol oynarlar. Bir çok enzimatik tepkimede araürün ... -
Biological assays and theoretical density functional theory calculations of Rh(I), Ir(III), and Ru(II) complexes of chiral phosphinite ligand
Rafikova, Khadichakhan; Binbay, Nil Ertekin; Meriç, Nermin; Kerimkulova, Aygül; Zazybin, Alexey; Binbay, Veysel; Okumuş, Veysi; Kayan, Cezmi; Işık, Uğur; Aydemir, Murat (Wiley, 2020)Four metal complexes, IL-OPPh2-Ru-p-cymene (3), IL-OPPh2-Ru-benzene (4), IL-OPPh2-Ir-Cp* (5), IL-OPPh2-Rh-COD (6), have been evaluated for in vitro antioxidant activity such as 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical ... -
Bis(phosphinite) with C2-Symmetric Axis; Effects on the Ruthenium(II)-Catalyzed Asymmetric Transfer Hydrogenation of Acetophenone Derivatives
Aydemir, Murat; Durap, Feyyaz; Kayan, Cezmi; Baysal, Akin; Turgut, Yilmaz (Georg Thieme Verlag Kg, 2012)Chiral ruthenium catalyst systems generated in situ from [Ru(eta(6)-p-cymene)(mu-Cl)Cl](2) complex and chiral C-2-symmetric bis(phosphinite) ligands based on amino alcohol derivatives were employed in the asymmetric transfer ... -
Boron containing chiral Schiff bases: Synthesis and catalytic activity in asymmetric transfer hydrogenation (ATH) of ketones
Pasa, Salih; Arslan, Nevin; Meric, Nermin; Kayan, Cezmi; Bingul, Murat; Durap, Feyyaz; Aydemir, Murat (Elsevier, 2020)Asymmetric Transfer Hydrogenation (ATH) has been an attractive way for the reduction of ketones to chiral alcohols. A great number of novel and valuable synthetic pathways have been achived by the combination usage of ... -
Catalysts for the asymmetric transfer hydrogenation of various ketones from [3-[(2S)-2-[(diphenylphosphanyl)oxy]-3-phenoxypropyl]-1-methyl-1H-imidazol-3-ium chloride] and [Ru(?6-arene)(?-Cl)Cl]2, Ir(?5-C5Me5)(?-Cl)Cl]2 or [Rh(?-Cl)(cod)]2
Meric, Nermin; Arslan, Nevin; Kayan, Cezmi; Rafikov, Khadichakhan; Zazybin, Alexey; Kerimkulova, Aygul; Aydemir, Murat (Elsevier Science Sa, 2019)The combination of [3-[(2S)-2-[(diphenylphosphanyl)oxy]-3-phenoxypropyl]-1-methyl-1H-imidazol-3-ium chloride] with [Ru(eta(6)-arene)(mu-Cl)Cl](2), Ir(eta(5)-C5Me5)(mu-Cl)Cl](2) or [Rh(mu-Cl)(cod)](2), in the presence of ... -
Cross-coupling reactions in water using ionic liquid-based palladium(II)-phosphinite complexes as outstanding catalysts
Meriç, Nermin; Aydemir, Murat; Işık, Uğur; Ocak, Yusuf Selim; Rafikova, Khadichakhan; Paşa, Salih; Kayan, Cezmi; Durap, Feyyaz; Temel, Hamdi; Zazybin, Alexey G. (Wiley, 2014)Two new phosphinite ligands based on ionic liquids [(Ph2PO)C7H14N2Cl]Cl (1) and [(Cy2PO)C7H14N2Cl]Cl (2) were synthesized by reaction of 1-(3-chloro-2-hydoxypropyl)-3-methylimidazolium chloride, [C7H15N2OCl]Cl, with one ... -
DFT investigation of transtion metals arene compounds with functionalized ionic liquid
Meriç, Nermin; Binbay, Nil Ertekin; Kayan, Cezmi; Binbay, Veysel; Aydemir, Murat (INESEG Yayıncılık, 2022)Electrochemical properties and theoretical DFT computations have been carried out for the cationic parts of complexes of ionic liquid-based phosphinite, (1A-3A). The effects of the chemical structures of cationic parts of ... -
Effect of initial configuration on DFT calculations for transition metal complexes
Binbay, Nil E.; Binbay, Veysel; Aydemir, Murat; Durap, Feyyaz; Meriç, Nermin; Kayan, Cezmi; Arslan, Nevin (Osman SAĞDIÇ, 2019)Computational methods, which solves the Schrödinger’s equation for molecules, have become an indispensable tool in last decades.And Density Functional Theory is one of the most used, and most effective computational ... -
Half-sandwich ruthenium(II) and iridium(III) complexes of imidazole based phosphinite ligands: antioxidant and antibacterial activities as well as electrochemical properties
Işık, Uğur; Rafikova, Khadichakhan; Meriç, Nermin; Güzel, Remziye; Kerimkulova, Aygül; Akimbek, Arailym; Okumuş, Veysi; Durap, Feyyaz; Kayan, Cezmi; Aydemir, Murat (John Wiley and Sons Inc, 2024)Ruthenium(II) and iridium(III) complexes of phosphinites including imidazole moiety were synthesized and characterized by microanalysis, IR, MS, and NMR spectroscopies. Antibacterial activity against Gram-positive and ... -
Imine containing C2-Symmetric chiral half sandwich ?6-p-cymene-Ru(II)- phosphinite complexes: Investigation of their catalytic activity in the asymmetric transfer hydrogenation of ketones
Saleh, Najmuldain Abdullah; Pasa, Salih; Kayan, Cezmi; Meric, Nermin; Sunkur, Murat; Aral, Tarik; Aydemir, Murat (Elsevier, 2020)New chiral C-2-symmetric bis(phosphinite) ligands containing imine group were synthesized from 1-({[(1R,2R)-2-{[(2-hydroxynaphthalen-1-yl)methylidene] amino}cyclohexyl]- imino}methyl)- naphthalen-2-ol and two equivalents ... -
Ketone transfer hydrogenation reactions catalyzed by catalysts based on a phosphinite ligand
Rafikova, Khadichakhan; Baysal, Akın; Meriç, Nermin; Zazybin, Alexey; Kayan, Cezmi; Işık, Uğur; Durap, Feyyaz; Aydemir, Murat (Taylor & Francis, 2022)Reaction of (+/-)-1-(2-furyl) ethanol with an equivalent Ph2PCl in the presence of Et3N proceeds in dry toluene under an argon atmosphere to give 1-(furan-2-yl)ethyl diphenylphosphinite (1) in good yield. Mononuclear ... -
Kiral Fosfinit Ligandları Içeren Yeni Rutenyum(II) Komplekslerinin Sentezi ve Ketonların Asimetrik Transfer Hidrojenasyon Reaksiyonundaki Katalitik Aktivitelerinin Arastırılması
Etkin kiral fosfor ligandların özellikle kiral iskelet yapısına sahip olanların geliştirilmesine yönelik çalışmalar asimetrik katalizin en öncelikli konuları arasında yeralmaktadır. Gu?nu?mu?ze kadar, fosfin ve metal-fosfin ... -
New bis(diphenylphosphino)aniline derivatives: Synthesis and spectroscopic characterization
Biricik, Nermin; Durap, Feyyaz; Kayan, Cezmi; Gümgüm, Bahattin (Wiley-Hindawi, 2007)Six new multidentate bis(diphenylphosphino)amine [R-N(PPh2)(2)] ligands have been prepared from the reaction of aniline derivatives, R-NH2, with Ph2PCl in the presence of triethylamine. All of the compounds were obtained ... -
New chiral phosphinite ligands with C2-symmetric axis and their possible applications in Ru-catalyzed asymmetric transfer hydrogenation
Aydemir, Murat; Meriç, Nermin; Baysal, Akın; Kayan, Cezmi; Toğrul, Mahmut; Gümgüm, Bahattin (Wiley, 2010)The new chiral ligands N,N'-bis-[(1R)-1-ethyl-2-O-(diphenylphosphinite)ethyl]ethanediamide, 1, and N,N'-bis-[(1S)-1-isobutyl-2-O-(diphenylphosphinite)ethyl]ethanediamide, 2, and the corresponding ruthenium complexes 3 and ... -
New chiral ruthenium(II)-phosphinite complexes containing a ferrocenyl group in enantioselective transfer hydrogenations of aromatic ketones
Ak, Bunyamin; Elma, Duygu; Meric, Nermin; Kayan, Cezmi; Isik, Ugur; Aydemir, Murat; Durap, Feyyaz (Pergamon-Elsevier Science Ltd, 2013)A new and versatile class of unsymmetrical ferrocenyl-phosphinite ligands possessing a stereogenic center has been prepared from commercially available, inexpensive aminoacids such as, D-, L-phenylglycine and D-, ... -
A new class of well-defined ruthenium catalysts for enantioselective transfer hydrogenation of various ketones
Kayan, Cezmi; Meric, Nermin; Rafikova, Khadichakhan; Zazybin, Alexey; Gurbuz, Nevin; Karakaplan, Mehmet; Aydemir, Murat (Elsevier Science Sa, 2018)A pair of novel optically pure phosphinite ligands were synthesized by ring opening reaction of chiral amines with (R)-styrene oxide or (S)-glycidyl phenyl ether oxide using a straightforward method in high yields and their ... -
New functional chiral P-based ligands and application in ruthenium-catalyzed enantioselective transfer hydrogenation of ketones
Meric, Nermin; Kayan, Cezmi; Gurbuz, Nevin; Karakaplan, Mehmet; Binbay, Nil Ertekin; Aydemir, Murat (Pergamon-Elsevier Science Ltd, 2017)Metal-catalyzed asymmetric transfer hydrogenation is a powerful and practical method for the reduction of ketones to produce the corresponding secondary alcohols, which are valuable building blocks in the pharmaceutical, ...
