Browsing Eğitim Fakültesi by Subject "Chemistry"

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A novel (E,E)-dioxime and its mono-, di- and trinuclear complexes bearing tetradentate octyl sulfanyl phenylamino substituents. Synthesis, characterization and electrochemical properties of its transition metal complexes

Kandaz, Mehmet; Yılmaz, İsmail (SPRINGER, 2002)

A new vic-dioxime, 13,14-bis-(hydroxyimino)-9,12,15,18-diazadithiaoctacosane, has been synthesized from 2-octylsulfanylaminobenzene and (E, E')-dichloroglyoxime. Mononuclear transition metal complexes of Ni-II, Cu-II, Co-II ...
Asymmetric reduction of acetophenone analogues by Alternaria alternata using ram horn peptone

Kurbanoğlu, Namudar İzzet; Kılıç, Harun (PERGAMON-ELSEVIER SCIENCE LTD, 2007)

Alternaria alternata EBK-4 fungus isolated from a plant sample was evaluated for the asymmetric reduction of acetophenone analogues. In a previous study, this isolate was used for the reduction of acetophenone to 1-phenylethanol ...
Continuous production of (S)-1-phenylethanol by immobilized cells of Rhodotorula glutinis with a specially designed process

Kurbanoğlu, Namudar İzzet; Taşkın, Mehmet Fatih (PERGAMON-ELSEVIER SCIENCE LTD, 2010)

A specially designed process for the continuous production of a chiral alcohol by immobilized Rhodotorula glutinis was prepared and is reported. The performance of the process with immobilized cells was also investigated. ...
Enantioselective reduction of substituted acetophenones by Aspergillus niger

Kurbanoğlu, Namudar İzzet; Kılıç, Harun (PERGAMON-ELSEVIER SCIENCE LTD, 2007)

Fourteen strains of Aspergillus niger were isolated from soil samples. These isolates were evaluated for tile reduction of acetophenone to 1-phenylethanol. Among the tested isolates, whole cells of the A. niger EBK-9 isolate ...
Highly enantioselective reduction of acetophenone by locally isolated Alternaria alternata using ram horn peptone

Kurbanoğlu, Namudar İzzet; Taşkın, Mehmet Fatih (PERGAMON-ELSEVIER SCIENCE LTD, 2007)

Enantiomerically pure compounds are important building blocks in the synthesis of natural products. In this study, the reduction of acetophenone to the (S)-isomer of 1-phenylalcohol with a high enantiomeric excess (ee) by ...
Production of (R)-1-phenylethanols Through Bioreduction of Acetophenones by a New Fungus Isolate Trichothecium roseum

Taşkın, Mehmet Fatih; Kurbanoğlu, Namudar İzzet; Kılıç, Harun (WILEY, 2010)

A total of 120 fungal strains were isolated from soil samples and evaluated in the bioreduction of substituted acetophenones to the corresponding (R)-alcohols. Among these strains, isolate Trichothecium roseum EBK-18 was ...
SEASONAL AND ECOLOGICAL ASPECTS OF PLAIN PASTURES OF UPPER MESOPOTAMIA FROM SANLIURFA (TURKEY)

V. Atamov; Çetin, Esat; C. Cevheri (SCIBULCOM LTD, 2016)

The aim of the study is to determine the changes of steppe flora at upper Mesopotamia according to seasons. Depending on the blooming phenophase of the plants picked from the research area, the seasonal conditions of the ...
Solvent-free synthesis of dihydropyrimidinones catalyzed by alumina sulfuric acid at room temperature

Beşoluk, Şenol; Küçükislamoğlu, Mustafa; Nebioğlu, Mehmet; Zengin, Mustafa; Arslan, Mustafa (SPRINGER, 2008)

A simple, efficient and practical procedure for the Biginelli reaction using alumina sulfuric acid (ASA) as a novel acid catalyst is described under solvent-free conditions. The catalyst exhibited remarkable reactivity at ...
Stereospecific synthesis of a DL-gala-aminoquercitol derivative

Kurbanoğlu, Namudar İzzet; Kılıç, Harun; Balci, Mustafa (PERGAMON-ELSEVIER SCIENCE LTD, 2010)

A new aminoquercitol derivative was synthesized starting from 1,4-cyclohexadiene. Photooxygenation of cyclohexa-1,4-diene afforded anti-2,3-dioxabicyclo[2.2.2]oct-7-en-5-yl hydroperoxicle as the main product. The formed ...
Stereospecific synthesis of a new N-tosyl bromo-aminocyclitol

Kurbanoğlu, Namudar İzzet (SPRINGER, 2017)

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Stereospecific synthesis of N-tosyl derivatives of dihydroconduramine E-2 and ent-F-2

Kurbanoğlu, Namudar İzzet; Beşoluk, Şenol; Zengin, Mustafa (ARKAT USA INC, 2010)

Conduramines, dihydroconduramines and structurally related compounds belong to an important class of glycosidase inhibitors which are essential elements of many biologically active compounds. The synthesis and characterization ...
Synthesis of phthalocyanines crosswise-substituted with two alkylsulfanyl and two crown-ether

Kandaz, Mehmet; Sönmez, Mine (NATL INST SCIENCE COMMUNICATION, 2001)

Crosswise-substutited phthalocyanines with two nitro and two dodecylsulfanyl groups are synthesized by a 1:1 condensation of 1,3-dihydro-1,3-diimino-6-(n-dodecylsulfanyl) isoimino indolenine with 6-nitro-1,3,3-trichloroi ...
Synthesis, characterization, and electrochemical properties of a novel macrocylic ligand and its transition metal complexes

Kandaz, Mehmet; Yılmaz, İsmail (SPRINGER-VERLAG WIEN, 2002)

2,3-Dibromo-6,7,13,14,15,16,22,23-octahydro-14,15-bis-(hydroxyimino)-tribenzo [e,k,q][1,4,7,10,13,16]tetraoxadiazacyclohexadecine (LH4) was prepared by condensation of 1,2-bis-(2'-aminophenoxyethoxy)-4,5-dibromobenzene ...
Total production of (R)-3,5-bistrifluoromethylphenyl ethanol by asymmetric reduction of 3,5-bis(trifluoromethyl)-acetophenone in the submerged culture of Penicillium expansum isolate

Taşkın, Mehmet Fatih; Kurbanoğlu, Namudar İzzet (PERGAMON-ELSEVIER SCIENCE LTD, 2009)

A total of 82 fungal isolates were screened for their ability to reduce 3,5-bis(trifluoromethyl)-acetophenone 1. Penicillium expansum was found to successfully reduce ketone I in the submerged culture. A second screening ...