Yazar "Uğraş, Halil İbrahim" için listeleme
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Bazı aldehit ve kumarin bileşiklerinin değişik amino türevleri ile reaksiyonları
Palabıyık, Arzu Gümüş (Balıkesir Üniversitesi Fen Bilimleri Enstitüsü, 2011)Çalışmamızın ilk aşamasında 2-hidroksibenzaldehit, 3-hidroksibenzaldehit, 4-hidroksibenzaldehit, tereftalaldehit ve 1,2-bis(4-(dimetilamino)fenil)etan-1,2-dion bileşiklerinin R-(-)-2-amino-1-bütanol ile reaksiyonlarından ... -
Bazı makrohalkalı eterlerin sentezi ve kompleksleşme sabitlerinin incelenmesi
Uğraş, Halil İbrahim (Balıkesir Üniversitesi Fen Bilimleri Enstitüsü, 2000)Tezimizde 15-24 üyeli halkalara sahip halkalı crown eterlerin bazıları (Dibenzo-18-Crown-6, Dibenzo-24-Crown-8, Dinafto-18-Cr-6, Dinafto-24-Cr-8) sentezlenip % 80 dioksan-su ikili karışımlı çözelti ortamlarında NaCl, NaClCU, ... -
Bazı sülfonamid türevlerinin sentezi ve karakterizasyonu
Karadeniz, Şeref (Balıkesir Üniversitesi Fen Bilimleri Enstitüsü, 2015)Sülfonamid türü bileşikler 50 yılı aşkın bir süredir bir çok alanda ilaç olarak kullanılmaktadır. Kumarin (2H-1-benzopiran-2-on) ve turevleri doğada yaygın olarak bulunurlar. Kumarinlerin birçok doğal ve sentetik türevleri ... -
Bazı yeni aza coronandların sentezi ve yapı karakterizasyonu
Uğraş, Halil İbrahim (Balıkesir Üniversitesi Fen Bilimleri Enstitüsü, 2003)Günümüze kadar çeşitli araştırmacılar tarafından çok sayıda, değişik özellikler taşıyan aza-taç eter bileşikleri sentezlenmiştir. Günümüzdeki kullanıcıların başlıca hedefi bu önemli aza-taç eterleri yeni, kısa ve daha ucuz ... -
Complexation and mutagenicity potential studies with N,N '-bis(2-hydroxynaphthalin-1-carbaldehydene)-1,2-bis-(P-aminophenoxy)ethane and a novel oxovanadium(IV) complex
Temel, Hamdi; Çakır, Ümit; Tolan, Veysel; Otludil, Birgül; Uğraş, Halil İbrahim (Taylor & Francis Ltd, 2004)A new oxovanadium(IV) complex of the Schiff base obtained by condensation of 1,2-bis(p-aminophenoxy)ethane with 2-hydroxynaphthalin-1-carbaldehyde was synthesized. The complex was characterized by elemental analysis, ... -
Complexation studies of N,N '-ethylene-bis(salicylideneimine)-cation complexation behavior in dioxane-water mixtures by conductometric studies
Temel, Hamdi; Çakır, Ümit; Uğraş, Halil İbrahim (Maik Nauka/Interperiodica/Springer, 2006)The tetradentate-ligand Schiff base derived from salicylaldehyde and 1,2-diaminoethane has been synthesized. The stability constants and thermodynamic values for the complexation between ZnCl2, Cu(NO3)(2), and AgNO3 salts ... -
Complexation studies of some newly synthesized precursors for substituted dibenzo and dibenzodiaza crown ethers
Çakır, Ümit; Uğraş, Halil İbrahim; Temel, Hamdi; Topal, Giray (John Wiley & Sons Inc, 2004)This study represents the synthesis of dibenzo and dibenzodiaza crown ether precursors with various functional groups in good yield by employing four different methods using polar protic and aprotic solvents with high ... -
Estimation of association constants of macrocyclic ethers by potentiometry. Part V. Na+ binding in dioxane/water (80/20)
Çakır, Ümit; Uğraş, Halil İbrahim; Erk, Çakıl (Taylor & Francis Ltd, 2004)The various association constants, beta(nm) and K-nm, of NaCl and NaClO4 with [12]crown-4, [15]crown-5, [18]crown-6, benzo[15]crown-5, benzo[12]crown-4, dibenzo[18]crown-6 and dinaphtho[18]crown-6 have been estimated in a ... -
Experimental, theoretical and biological activity study on the acyl-substituted benzo-18-crown-6, dibenzo-18-crown-6 and dibenzo-24-crown-8
Uğraş, Halil İbrahim; Çakır, Ümit; Azizoğlu, Akın; Kılıç, Turgut; Erk, Çakıl (Springer, 2006)Hexadecanoyl, dihexadecanoyl, dioctadecaneoyl, di-10-undecenoyl, and dicis-9-octadecenoyl derivatives of benzo[18]crown-6, dibenzo[18]crown-6 and dibenzo[24]-8 were synthesized by the condensation of carboxylic acids ... -
In vitro cytotoxic and genotoxic effects of newly synthesised boron ionic liquids
Bayıl Oğuzkan, Sibel; Türkez, Hasan; Karagül, Bora; Çakır, Ümit; Uğraş, Halil İbrahim (Taylor and Francis Ltd., 2018)In this study, new molecules containing boron were added to the family of ionic organic compounds, in particular, ionic liquids with a cationic center. This study aimed to determine the cytotoxic and genetic effects of a ... -
In vitro cytotoxic and genotoxic effects of newly synthesised boron ionic liquids
Oğuzkan, Sibel Bayıl; Türkez, Hasan; Karagül, Bora; Çakır, Ümit; Uğraş, Halil İbrahim (Taylor & Francis LTD, 2019)In this study, new molecules containing boron were added to the family of ionic organic compounds, in particular, ionic liquids with a cationic center. This study aimed to determine the cytotoxic and genetic effects of a ... -
In vitro inhibition effects of some new sulfonamide inhibitors on human carbonic anhydrase I and II
Çakır, Ümit; Uğraş, Halil İbrahim; Özensoy, Özen; Sinan, Selma; Arslan, Oktay (Taylor & Francis Ltd, 2004)A new series of aromatic and heterocyclic sulfonamides, including six new derivatives, 2-(3-cyclohexene-1-carbamido)-1,3,4-thiadiazole-5-sulfonamide (CCTS), 4-(3-cyclohexene-1-carbamido) methyl-benzenesulfonamide (CCBS), ... -
Spectroscopic and conductance studies of new transition metal complexes with a schiff base derived from 4-methoxybenzaldehyde and 1,2-bis(p-aminophenoxy)ethane
Four new metal complexes of Cu(II), Ni(II), Zn(II) and Co(III) with Schiff base derived from 4-methoxybenzaldehyde and 1,2-bis(p-aminophenoxy)ethane have been prepared and characterized by magnetic susceptibility, conductance ... -
Synthesis and characterization of a novel oxovanadium(IV) complex and conductometric studies with N,N '-bis(salicylidene)-1,2-bis-(p-aminophenoxy)ethane
Temel, Hamdi; Çakır, Ümit; Uğraş, Halil İbrahim (Marcel Dekker Inc, 2004)A new oxovanadium complex of the Schiff base obtained by the condensation of 1,2-bis(p-aminophenoxy)ethane with salicylaldehyde was synthesized. The complex has been characterized by elemental analyses, magnetic measurements, ... -
Synthesis and characterization of Zn(II), Cu(II) and Ni(II) complexes with bidentate Schiff base ligands: Complexation studies and the determination of stability constant (Ke)
Temel, Hamdi; Çakır, Ümit; Uğraş, Halil İbrahim (Interperiodica, 2001)The nickel(II), copper(II), and zinc(II) complexes with Schiff bases derived from 1-naphthylarnine and 2-hydroxy naphthaline-1-carbaldehyde (HL) or 1,4-diaminobutane and 4-methoxy benzaldehyde (L') have been prepared. The ... -
Synthesis of new sulfonamide inhibitors of carbonic anhydrase
Arslan, Oktay; Çakır, Ümit; Uğraş, Halil İbrahim (Maik Nauka/Interperiodica, 2002)Four different derivatives of aromatic sulfonamides have been synthesized: 1,2-bis[(4-sulfonamidobenzamide)ethoxyl]ethane (SBAM), 1, 2-bis[(4-sulfonamidobenzoate)ethoxy]ethane,1,2-bis[(2,4-dichloro-5-sulfonamidobenzamide ... -
Synthesis of some 3-phenyl chromenone-crown ethers and equilibrium studies on complexation with ion-pair extraction of sodium and potassium dyes
Çakır, Ümit; Özer, Metin; İçen, Mehmet A.; Uğraş, Halil İbrahim; Bulut, Mustafa (Elsevier Science Bv, 2004)6,7-Dihydroxy-3-phenyl-2H-chromenones and 7,8-dihydroxy-3-(methoxyphenyl)-2H-chromenones, o-dihydroxy-3-phenylcoumarins, were prepared from phenylacetic acid/2,4,5-trihydroxybenzaldehyde, methoxyphenylacetic acid/2,3,4-t ... -
Synthesis, antielastase, antioxidant and radical scavenging activities of 4-(aza substituted) methylene substituted dihydroxy coumarines
Sökmen, Bahar Bilgin; Aydın, Gülşah; Gümüş, Arzu; Karadeniz, Şeref; Uğraş, Halil İbrahim; Yanardağ, Refiye; Çakır, Ümit (Informa Healthcare, 2013)A series of some 4-(aza substituted) methylene substituted dihydroxy coumarines were evaluated for their antioxidant and antielastase activities. Different in vitro methodologies such as total reducing power, 1,1-dipheny ... -
Synthesis, complexation, and biological activity studies of 4-aminomethyl-7,8-dihydroxy coumarines and their crown ether derivatives
Gümüş, Arzu; Karadeniz, Şeref; Uğraş, Halil İbrahim; Bulut, Mustafa; Çakır, Ümit; Gören, Ahmet Ceyhan (Wiley-Blackwell, 2010)The article focuses synthesis of novel 4-aminomethyl-7,8-dihydroxy coumarins and their crown ether derivatives. The purified novel coumarins and their crown ether derivatives were identified by (1)H NMR, (13)C NMR, mass ... -
Synthesis, extraction and antibacterial studies of some new bis-1,2,4-triazole derivatives part II
Gümrükçüoğlu, Nurhan; Uğraş, Serpil; Uğraş, Halil İbrahim; Çakır, Ümit (Springer, 2012)The treatment of 4-amino-3,5-diphenyl-4H-1,2,4-triazole 3 with various bis-aldehydes resulted in the formation of bis-4-arylidenamino-3,5-diphenyl-4H-1,2,4-triazoles (4a-d) derivatives. NaBH4 reduction of 4-arylidenamino ...
