Browsing by Author "Demir, Ayhan S."
Now showing items 1-9 of 9
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Carboligation reactions catalyzed by benzaldehyde lyase (BAL, EC 4.1.2.38) covalently attached to epoxysilane modified Fe3O4@SiO2 nanoparticles
Tural, Bilsen; Turan, Ilke Simsek; Celebi, Bulent; Yalinkilic, Ibrahim; Demir, Ayhan S. (Amer Chemical Soc, 2011)[Abstract Not Available] -
Carboligation reactions mediated by benzoylformate decarboxylase immobilized on a magnetic solid support
Tural, Bilsen; Tural, Servet; Demir, Ayhan S. (Wiley, 2013)In this study, magnetic nanoparticles (Fe3O4, magnetite) with immobilized metal affinity ligands (MSS) were prepared and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), fourier transform ... -
Carboligation reactions with benzaldehyde lyase immobilized on superparamagnetic solid support
Sopaci, S. Betuel; Turan, Ilke Simsek; Tural, Bilsen; Volkan, Muervet; Demir, Ayhan S. (Royal Soc Chemistry, 2009)Histidine-tagged recombinant benzaldehyde lyase (BAL, EC 4.1.2.38) was efficiently immobilized to surface-modified magnetic particles with affinity ligand binding. In addition to conventional benzoin condensation reactions, ... -
Carboligation reactivity of benzaldehyde lyase (BAL, EC 4.1.2.38) covalently attached to magnetic nanoparticles
Tural, Bilsen; Turan, Ilke Simsek; Tural, Servet; Celebi, Bulent; Demir, Ayhan S. (Pergamon-Elsevier Science Ltd, 2013)Epoxy-functionalized Fe3O4-SiO2 core-shell magnetic nanoparticles (epoxy-M-support) were prepared by modification with glycidyloxypropyltrimethoxysilane (GPTMS) and characterized by X-ray diffraction (XRD), transmission ... -
Manganese(III) acetate mediated oxidation of 1-alkyl-1H-indole and 9-methyl-9H-carbazole derivatives
Demir, Ayhan S.; Tural, Servet (Arkat Usa Inc, 2008)Manganese(III) acetate mediated oxidation of 1-alkyl-1H-indole and 9-methyl-9H-carbazole was studied. 1-Methyl-1H-indole gives the 1-acetoxymethyl derivative with good yield. 1-Methyl- 2-phenyl-1H-indole furnished the ... -
Preparation and characterization of surface modified ?-Fe2O3 (maghemite)-silica nanocomposites used for the purification of benzaldehyde lyase
Tural, Bilsen; Sopaci, S. Betul; Ozkan, Necati; Demir, Ayhan S.; Volkan, Murvet (Pergamon-Elsevier Science Ltd, 2011)gamma-Fe2O3 (maghemite)-silica nanocomposite particles were synthesized using a sol-gel method. The condensation products of 3-glycidoxy propyltrimethoxy silane (GPTMS) and nitrilotriacetic acid (NTA) were introduced onto ... -
Purification and covalent immobilization of benzaldehyde lyase with heterofunctional chelate-epoxy modified magnetic nanoparticles and its carboligation reactivity
Tural, Bilsen; Tural, Servet; Ertas, Erdal; Yalinkilic, Ibrahim; Demir, Ayhan S. (Elsevier Science Bv, 2013)In this work, histidine-tagged recombinant benzaldehyde lyase from Pseudomonas fluorescens Biovar I (BAL, EC 4.1.2.38) was immobilized on the magnetically responsive epoxy-chelate magnetic support following a two-step ... -
Selective one-pot synthesis of substituted pyrrole-3-phosphonates from ?-cyanomethyl-?-ketoesters
Demir, Ayhan S.; Tural, Servet (Pergamon-Elsevier Science Ltd, 2007)A one-step synthesis of 5-alkoxypyrrole-3-phosphonates is presented starting from suitable alpha-cyanomethyl-beta-ketophosphonates. The key step in the synthesis involves a one-pot addition and heteroannulation sequence. ... -
Separation and purification of benzoylformate decarboxylase via immobilization on magnetic solid support
Tural, Bilsen; Sopaci, S. Betul; Demir, Ayhan S. (Amer Chemical Soc, 2009)[Abstract Not Available]
