Browsing by Author "Çolak, Naki"
Now showing items 1-20 of 29
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4-[2-(2,2-Dimethyl-4,6-dioxo-1,3-dioxan-5-ylidene)hydrazin-1-yl] benzo-nitrile
In the title compound, C 13H 11N 3O 4, the dioxane ring adopts an envelope conformation with the C atom bonded to the dimethyl group in the flap position [deviation = 0.613 (1) Å]. The nitrile group and the attached benzene ... -
Amino tiyofen bileşiklerinden imin bileşiklerinin sentezlenmesi ve spektroskopik olarak incelenmesi
Altıner, Saliha (Hitit Üniversitesi Fen Bilimleri Enstitüsü, 2015)Bu çalışmada, çıkış maddesi olarak 4-metilsiklohekzanon ve 4-etilsiklohekzanon bileşiklerinin malononitril ile kükürt varlığında etkileştirilmesi sonucu Gewald yöntemi ile aminotiyofen grubu içeren bileşikler elde edildi. ... -
Aminotiyofen grubu içeren amit bileşiklerinin sentezi ve yapılarının spektroskopik yöntemlerle aydınlatılması
İlçi, Elifhan (Hitit Üniversitesi, 2020)Aminotiyofen grubu içeren bileşiklerin, farmakolojik özelliklere sahip olduğu bilinmektedir. Literatürde bu tür bileşiklerin lokal anestetik, antimikrobiyal, antiinflamatuar etkiye sahip oldukları ve yaygın olarak ... -
Aminotiyofen türevi maddelerin sentezi, bu maddelerin imidazolidin-2,4-dion ile diazolanarak kenetlenmesi ve korozyona karşı inhibitör etkinliklerinin incelenmesi
Ak, Yavuz (Hitit Üniversitesi Fen Bilimleri Enstitüsü, 2015)Bu çalışmada, 4-metilsiklohekzanon, N-etoksikarbonil-4-piperidon, N-metil-4-piperidon ve 4-fenilsiklohekzanon bileşiklerinden çıkılarak Gewald yöntemi ile aminotiyofen grubu içeren bileşikler sentezlendi. Sentezlenmiş olan ... -
(E)-2-((sübstitüebenziliden)amino)-3a,4,7,7a-tetrahidro-1H-4,7-epoksiindol-1,3(2H)-dion bileşiklerinin sentezi ve yapılarının spektroskopik yöntemlerle aydınlatılması
Kuşçu, Volkan (Hitit Üniversitesi, 2019)Bu çalışmada, çıkış maddesi olarak maleik anhidrit'in furan ile etkileştirilmesi sonucu diels-alder tepkimesiyle bisiklo bileşiği sentezlendi. Bu bileşiğin hidrazin hidrat ile etkileşitirilmesi ile N-amino grubu içeren ... -
Ethyl 2-[(2-hydroxybenzylidene)amino]-6-methyl-4,5,6,7-tetrahydrothieno[2, 3-c]pyridine-3-carboxylate
The title compound, C18H20N2O3S, exists as the phenol–imine form in the crystal and there are bifurcated intramolecular O—H…(N/O) hydrogen bonds present. The conformation about the C N bond is anti (1E); the C N imine bond ... -
Facile synthesis of the azocino[4,3-b]indole framework of strychnopivotine and other Strychnos alkaloids
Uludağ, Nesimi; Yılmaz, Recep; Asutay, Oktay; Çolak, Naki (Springer New York LLC, 2016)[Figure not available: see fulltext.]A new synthetic route to the 1,5-methanoazocino[4,3-b]indole is described. The aim of the present study is to provide a tetracyclic skeleton for the synthesis of pentacyclic Strychnos ... -
Fast method for synthesis of alkyl and aryl-N-methylnitrones
Yavuz, Serkan; Özkan, Hamdi; Çolak, Naki; Yıldırır, Yılmaz (MDPI AG, 2011)A simple, fast, efficient and eco-friendly procedure was developed for the synthesis of alkyl and aryl-N-methylnitrones. The corresponding nitrones of aromatic aldehydes, aliphatic aldehydes and alicyclic carbonyl compounds ... -
The inhibition of steel corrosion in acidic solutions by a new Schiff base
Bakırhan, Nurgül K.; Asan, Abdurrahman; Çolak, Naki; Şanlı, Senem (Sociedad Chilena de Quimica, 2016)The inhibition effect of 2,2?- (((thiobis (4,1 phenylene)) bis(azanylylidene)) bis(methanylyidene)) bis(4-methoxyphenol) (BIS-IMIN) on the corrosion behavior of 304-stainless steel (SS) in 0.5 M HCl solution was studied ... -
İmin bileşiklerinin eldesi, yapılarının aydınlatılması ve biyolojik aktivelerinin incelenmesi
Marım, Nazmiye (Hitit Üniversitesi Fen Bilimleri Enstitüsü, 2014)Bu çalışmada 1- metilpiperidin-4-on bileşiğinin etilsiyonaasetat ile etkileştirilmesiyle, etil 2-amino-6-metil-4,5,6,7-tetrahidroetieno(2,3-c)piridin -3- karbosiklat; 1- etilpiperidin -4-on bileşiğinin malonitril ile ... -
The photo-electrical properties of the p-Si/Fe(II)-polymeric complex/Au diode
Gündüz, Bayram; Turan, Nevin; Kaya, Esin; Çolak, Naki (2013)In this study, the Schiff base monomer was prepared by a common condensation method of salicylaldehyde and (E)-3-amino-4-((3-bromophenyl)diazenyl)-1H-pyrazol-5-ol. The poly(Schiff base) was synthesized from the oxidative ... -
Schiff Base and Its Fe(II), Zn(II), Ru(II), Pd(II) Complexes Containing ONS Donor Atoms: Synthesis, characterization and Catalytic Studies
The work include the synthesis, spectroscopic characterization and as well as catalytic activities of Fe(II), Zn(II), Ru(II), and Pd(II) complexes with a novel Schiff base ligand derived from methyl 2amino-5,5,7,7-tetram ... -
Spectrophotometric determination of acidity constants of some novel methotrexate-like compounds in water and acetonitrile-water binary mixtures
Çolak, Naki; Şanlı, Senem; Şanlı, Nurullah (2010)The acidity constants of four novel methotrexate like compounds (NPALA; (N-[4-[[2-hydroxy -1-naphtyl)methylene]amino]benzoyl-?-alanin) TPALA; (N-[4-(2-thiophene-aldiminobenzoyl)-?-alanin), SAL-ALA; N-[4-[[2-hydroxyphenyl ... -
Spectroscopic properties of 2,2’-[Thiobis(p-phenylenenitrilo-methylidyne)]bis(4-chloro/bromo/methyl/nitro/methoxy)phenol
Çolak, Naki; Kuşçu, Volkan (Hacettepe University, 2012)Novel Schiff base has been synthesized from the reaction of 4,4’-diaminodiphenyl sulfide with 2-hydroxy5-substituebenzaldehyde and 2-hydroxynaphtaldehyde. The compounds were characterized by elemental analysis, FT-IR, 1 H ... -
Spectroscopic, antiproliferative and antiradical properties of Cu(II), Ni(II), and Zn(II) complexes with amino acid based Schiff bases
Karagöz Genç, Zuhal; Selçuk, Sibel; Sandal, Süleyman; Çolak, Naki; Keser, Serhat; Sekerci, Memet; Karatepe, Mustafa (Birkhauser Boston, 2014)Novel six Cu(II), Ni(II), and Zn(II) complexes with Schiff bases derived from 4-aminobenzoic acid with terephtaldehyde and amino acids (glycine, ?-alanine). Structures have been proposed from elemental analysis, UV-Vis, ... -
Study of structure and spectral characteristics of the Zinc(II) and Copper(II) complexes with 5,5-dimethyl-2-(2-(3-nitrophenyl) hydrazono)cyclohexane-1,3-dione and their effects on optical properties and the developing of the energy band gap and ınvestigation of antibacterial activity
Turan, Nevin; Gündüz, Bayram; Körkoca, Hanifi; Adıgüzel, Ragıp; Çolak, Naki; Buldurun, Kenan (Sociedad Quimica de Mexico A.C., 2014)A new chelating ligand, 5,5-dimethyl-2-(2-(3-nitrophenyl) hydrazono)cyclohexane-1,3-dione (L), and four transition metal complexes were synthesized. The ligand and its complexes were characterized by IR, 1H and 13C-NMR ... -
Synthesis and biological activity of new cycloalkylthiophene-Schiff bases and their Cr(III) and Zn(II) complexes
Altundaş, Aliye; Sarı, Nurşen; Çolak, Naki; Öğütcü, Hatice (Birkhauser Boston, 2010)A series of some novel Ethyl 2-((1-hydroxynaphthalen-2-yl)methyleneamino)- 5,6-dihydro-4H-cyclopenta[b]thiopehene-3-carboxylate, Ethyl 2-((1- hydroxynaphthalen- 2-yl)methyleneamino)-4,5,6,7-tetrahydrobenzo[b]thiophene-3- ... -
Synthesis and structures of Fe(II), Zn(II) and Pd(II) complexes with a schiff base derived from methyl 2-amino-6-methyl-4,5,6,7-tetrahydrothieno[2,3-c] pyridine-3-carboxylate and comparison of their optical constants for different solvents and molarities
Turan, Nevin; Buldurun, Kenan; Gündüz, Bayram; Çolak, Naki (American Scientific Publishers, 2017)Schiff base derived from condensation of o-vanillin (3-methoxysalicylaldehyde) and methyl 2-amino-6-methyl- 4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate and its metal complexes are synthesized and characterized ... -
Synthesis of bis(thiosemicarbazone) derivatives: Definition, crystal structure, biological potential and computational analysis
Ateş, Davut; Gülcan, Mehmet; Gümüş, Selçuk; Şekerci, Mehmet; Özdemir, Sadin; Şahin, Ertan; Çolak, Naki (Taylor and Francis Ltd., 2018)(2-(2-(2-methoxyphenyl)hydrazono)cyclohexane-1,3-diylidene) bis(hydrazine carbothioamide) (L1), 4-(2-(-2,-6-bis(2-carbamothioylhydrazono) cyclohexylidene) hydrazinyl)benzoic acid (L2), and (2-(2-(4-bromophenyl) hydrazono) ... -
Synthesis of some novel derivatives of 2,6-diaminoanthraquinone dyes
Yıldırır, Yılmaz; Canbolat, Melek; Dişli, Ali; Çolak, Naki (2008)In present study, some derivatives of 2,6-diaminoanthraquinone dyes are synthesized and their UV-visible spectra are investigated in various conditions. Ten compounds (1a-e) and (2a-e), two of which (1a, 1b) were previously ...
