Browsing by Author "Elma, Duygu"
Now showing items 1-10 of 10
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C2-simetrik kiral fosfinit ligandların sentezi, Pd(II)ve Ru(II) komplekslerinin asimetrik katalizdeki etkinliklerinin incelenmesi
Elma, Duygu (2015)Organik ve farmasötik kimya, istenilen enantiyomerin ana ürün olduğu ve diğer enantiyomerin olabildiğince bastırıldığı, enantiyoseçici (asimetrik) sentezler için sentetik metotlar bulmak amacıyla son yıllarda önemli ... -
Highly efficient iridium catalysts based on C2-symmetric ferrocenyl phosphinite ligands for asymmetric transfer hydrogenations of aromatic ketones
Ak, Bunyamin; Aydemir, Murat; Durap, Feyyaz; Meric, Nermin; Elma, Duygu; Baysal, Alan (Pergamon-Elsevier Science Ltd, 2015)A series of chiral modular C-2-symmetric ferrocenyl phosphinite ligands have been synthesized in good yields by using 1,1'-ferrocenedicarboxyaldehyde and various amino alcohols as starting materials, and applied in the ... -
Kiral fosfinit bileşikleri ve geçiş metal komplekslerinin sentezi, tanımlanması ve katalitik etkinliklerinin araştırılması
Elma, Duygu (2015)Kiral geçiş metal kompleksleri ile asimetrik transfer hidrojenasyon, yöntemin kolay uygulanabilir olması, geniş bir substrat aralığında kullanılabilmesi ve mükemmel sayılabilecek seçiciliğe olanak vermesi gibi avantajları ... -
New C2-symmetric chiral phosphinite ligands based on amino alcohol scaffolds and their use in the ruthenium-catalysed asymmetric transfer hydrogenation of aromatic ketones
Durap, Feyyaz; Aydemir, Murat; Elma, Duygu; Baysal, Akin; Turgut, Yilmaz (Elsevier France-Editions Scientifiques Medicales Elsevier, 2013)Asymmetric transfer hydrogenation processes of ketones with chiral molecular catalysts are attracting increasing interest from synthetic chemists due to their operational simplicity. C-2-symmetric catalysts have also ... -
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 efficient bis(phosphinite)-ruthenium(II) catalyst system for the asymmetric transfer hydrogenation of aromatic ketones
Durap, Feyyaz; Aydemir, Murat; Baysal, Akin; Elma, Duygu; Ak, Bunyamin; Turgut, Yilmaz (Elsevier Science Sa, 2014)Many chiral ligands bearing phosphorus donor atoms were developed and applied in the area of metal catalyzed asymmetric catalysis. A new chiral bis(phoshinite) ligand was successfully synthesized from optically active ... -
p(HEMA)-Pd(II) and p(HEMA-MAH)-Pd(II) Microspheres: Efficient, Recyclable and Ligand-Free Catalyst for Suzuki-Miyaura Cross-Coupling Reaction in Water
Durap, Feyyaz; Baysal, Akin; Elma, Duygu; Aydemir, Murat; Ok, Ozge; Baysal, Zubeyde (Taylor & Francis Inc, 2016)In this study, the authors report the synthesis and characterization of new poly(hydroxyethyl methacrylate) palladium(II) (p (HEMA)-Pd(II)) and poly(hydroxyethyl methacrylate-N-methacryloyl-(L)-histidine methyl ester) ... -
Ruthenium, rhodium and iridium complexes of the furfuryl-2-(N-diphenylphosphino)methylamine ligand: Molecular structure and catalytic activity
Kayan, Cezmi; Meric, Nermin; Aydemir, Murat; Baysal, Akin; Elma, Duygu; Ak, Bunyamin; Sahin, Ertan (Pergamon-Elsevier Science Ltd, 2012)The reaction of furfurylamine with two equivalents of PPh2Cl in the presence of Et3N affords furfuryl-2-(N,N-bis(diphenylphosphino)amine), (Ph2P)(2)NCH2-C4H3O (1). The corresponding ruthenium(II) complex trans-[Ru((PPh2) ... -
Screening of C2-symmetric chiral phosphinites as ligands for ruthenium(II)-catalyzed asymmetric transfer hydrogenation of prochiral aromatic ketones
Elma, Duygu; Durap, Feyyaz; Aydemir, Murat; Baysal, Akin; Meric, Nermin; Ak, Bunyamin; Turgut, Yilmaz (Elsevier Science Sa, 2013)Metal-catalyzed transfer hydrogenation processes provide a widely-used alternative to direct hydrogenation processes of ketones. As part of an ongoing program, we report enantioselective C-2-symmetric bis(phosphinite)-ru ... -
Synthesis of clay-based superabsorbent composite and its sorption capability
Bulut, Yasemin; Akcay, Guelten; Elma, Duygu; Serhatli, I. Ersin (Elsevier Science Bv, 2009)A novel superabsorbent composite was synthesized by copolymerization reaction of partially neutralized acrylic acid (AA) on bentonite micropowder using N,N'-methylenebisacrylamide as a crosslinker and ammonium persulfate ...
