Güncel Gönderiler: Fen Fakültesi
Toplam kayıt 2379, listelenen: 2041-2060
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Efficient syntheses and antimicrobial activities of new thiophene containing pyranone and quinolinone derivatives using manganese(iii) acetate: the effect of thiophene on ring closure-opening reactions
(Royal Soc Chemistry, 2019)The syntheses of a new series of pyranones, namely, fused pyranones and quinoline-based dihydrofurans, accompanied by 3-alkenyl-substituted structures were investigated. The products were regioselectively formed by ... -
Syntheses of and structural studies on some square planar dithiophosphonato Ni(II) complexes, octahedral pyridine derivatives thereof and X-ray crystallography, DFT and molecular docking studies of the latter
(Elsevier Science BV, 2019)Five new dithiophosphonic acids ((p-MeO-C6H4)PS(SH)(OR), HLn, (n = 1-5); R = 3-pentyl-, HL1; R = 1-phenyl-1-propyl-, HL2; R = 4-tert-butyl benzyl-, HL3; R = diphenylmethyl-, HL4; R=4-tert-butylcyclohexyl-, HL5) were prepared ... -
Synthesis of ferrocene substituted dihydrofuran derivatives via manganese(III) acetate mediated radical addition-cyclization reactions
(Pergamon-Elsevier Science LTD, 2017)In this study, the manganese(III) acetate mediated radical addition-cyclization reactions of ferrocene substituted alkenes and active methylene compounds were carried out. The regio- and stereoselective radical cyclization ... -
Crystal structure and Hirshfeld surface analysis of aquabis(nicotinamide-kappa N)bis(4-sulfamoylbenzoato-kappa O-1)copper(II)
(Int Union Crystallography, 2018)In the crystal of the title complex, [Cu(C7H6NO4S)(2)(C6H6N2O)(2)(H2O)], the Cu-II cation and the O atom of the coordinated water molecule reside on a twofold rotation axis. The Cu-II ion is coordinated by two carboxylate ... -
Phosphorus-nitrogen compounds: Part 19. Syntheses, structural and electrochemical investigations, biological activities, and DNA interactions of new spirocyclic monoferrocenylcyclotriphosphazenes
(Pergamon-Elsevier Science LTD, 2010)The reactions of hexachlorocyclotriphosphazatriene, N3P3Cl6, with N-alkyl-N-ferrocenylmethylethylene diamines, FcCH(2)NH(CH2)(2)NHR1 [R-1 = Me (1) and Et (2)], and sodium [3-(N-ferrocenylmethylamino)-1-propanoxide] (3) ... -
Synthesis of New Phosphorus Ylides: Spectroscopic and X-ray Structural Studies
(John Wiley & Sons Inc, 2010)Stable phosphoranes, Ar(3)P = CHCOR (R = C(6)H(5), C(6)H(4)NO(2), C(6)H(4)OCH(3), CH 3, OCH(2)C(6)H(5); Ar = p-tolyl or phenyl), have been C-acylated by acetic anhydride to obtain new types of phosphorus ylides. Synthesis ... -
Synthesis and Spectroscopic Characterizations of Novel Ni(Ii) and Co(Ii) Dithiophosphinate Complexes, and X-Ray Studies on the Ni(Ii) Complex
(Taylor & Francis LTD, 2012)The reaction of 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide (Lawesson's Reagent) with two different Grignard reagents gave the corresponding dithiophosphinic acids (DTPA), CH3OC6H4-(R)P(S)SH; [R = ... -
Formation of novel spiro, spiroansa and dispiroansa derivatives of cyclotetraphosphazene from the reactions of polyfunctional amines with octachlorocyclotetraphosphazatetraene
(Indian Acad Sciences, 2009)Nucleophilic substitution reactions of N4P4Cl8, with di-, tri-, and tetra-functional reagents such as N-methyl-1,3-propanediamine, N,N'-methyl-1,3-propanediamine, spermidine and spermine were investigated in this study. ... -
Phosphorus-Nitrogen Compounds. Part 24. Syntheses, Crystal Structures, Spectroscopic and Stereogenic Properties, Biological Activities, and DNA Interactions of Novel Spiro-ansa-spiro- and Ansa-spiro-ansa-cyclotetraphosphazenes
(American Chemical Society, 2012)The reactions of octachlorocyclotetraphosphazene, N4P4Cl8, with N2O2 donor-type aminopodands (1a, 1b, 1g, and 1h) afforded two kinds of derivatives, namely, spiro-ansa-spiro (sas) (2a, 2b, 2g, and 2h) and ansa-spiro-ansa ... -
Phosphorus-nitrogen compounds. Part 29. Syntheses, crystal structures, spectroscopic and stereogenic properties, electrochemical investigations, antituberculosis, antimicrobial and cytotoxic activities and DNA interactions of ansa-spiro-ansa cyclotetraphosphazenes
(Elsevier France-Editions Scientifiques Medicales Elsevier, 2014)A number of novel ansa-spiro-ansa (asa) cyclotetraphosphazenes (1a-5b) was prepared in the range of 63-90% yields. The structures of the compounds were verified by MS, FTIR, H-1, C-13{H-1} and P-31{H-1} NMR, heteronuclear ... -
Phosphorus-nitrogen compounds part 33: in vitro cytotoxic and antimicrobial activities, DNA interactions, syntheses, and structural investigations of new mono(4-nitrobenzyl)spirocyclotriphosphazenes
(Springer, 2016)The condensation reactions of hexachlorocyclotriphosphazene, N3P3Cl6, with N-alkyl-N'-mono(4-nitrobenzyl)diamines (1-3), NO2PhCH2NH(CH2) (n) NHR1 (R-1 = CH3 or C2H5), led to the formation of the mono(4-nitrobenzyl)spiroc ... -
Phosphorus-nitrogen compounds. Part 23: Syntheses, structural investigations, biological activities, and DNA interactions of new N/O spirocyclotriphosphazenes
(Pergamon-Elsevier Science LTD, 2012)The Schiff base compounds (1 and 2) are synthesized by the condensation reactions of 2-furan-2-yl-methylamine with 2-hydroxy-3-methoxy- and 2-hydroxy-5-methoxy-benzaldehydes and reduced with NaBH4 to give the new N/O-donor-type ... -
The new dispirobino and dispiroansa spermine derivatives of cyclotriphosphazenes
(Pergamon-Elsevier Science LTD, 2010)In this study, the crystal structures of the dispiroansa spermine derivatives of cyclotriphosphazene are characterised for the first time. The reaction of spiro-, gem-disubstituted cyclotriphosphazene derivatives, ... -
The reaction of thiophenoxide with amino-substituted chloro-cyclotriphosphazenes
(Pergamon-Elsevier Science LTD, 2009)In the present work, a series of aminocyclotriphosphazene containing sulfur group compounds have been synthesised and characterised by elemental analysis, mass (MS), (1)H and (31)P NMR spectroscopies. The formation of ... -
Phosphorus nitrogen compounds: Part 34. Syntheses, structural investigations, cytotoxic and biological activities of spiro-ansa-spiro and spiro-bino-spiro tetrameric phosphazene derivatives
(Elsevier Science Sa, 2016)The reactions of N4P4Cl8 with the symmetric N2N2 (1-3) and N2O2 (4) bulky ligands gave partly substituted 2,4-sas (5 and 6), 2,6-sas (7-10) and sbs (11-14) tetrameric phosphazene derivatives. The 2,4-sas-5, 2,6-sas-8 and ... -
Phosphorus-nitrogen compounds part 22. Syntheses, structural investigations, biological activities and DNA interactions of new mono and bis (4-fluorobenzyl) spirocyclophosphazenes
(Pergamon-Elsevier Science LTD, 2011)The reactions of hexachlorocyclotriphosphazene, N3P3Cl6, with mono (1 and 2) and bis(4-fluorobenzyl) diamines (3-5), FPhCH2NH(CH2)(n)NHR (R=H or FPhCH2-), produce mono (1a and 2a) and bis(4-fluorobenzyl) monospirocyclophosphazenes ... -
Syntheses, spectroscopic and structural characterizations and metal ion binding properties of Schiff bases derived from 4 '-aminobenzo-15-crown-5
(Pergamon-Elsevier Science LTD, 2012)A series of benzyloxybenzaldehyde derivatives (1-4) were synthesized by the reactions of 4-(bromomethyl)benzonitrile with 4-hydroxy-3-methoxybenzaldehyde (vanillin), 2-hydroxy-3-methoxybenzaldehyde (o-vanillin), ... -
Tetrakis(mu-4-methylbenzoato-kappa O-2:O ')bis[(N,N-diethylnicotinamide-kappa N-1)zinc(II)\]
(Wiley-Blackwell, 2010)In the centrosymmetric binuclear title complex, [Zn-2(C8H7O2)(4)(C10H14N2O)(2)], the Zn atoms [Zn center dot center dot center dot Zn' = 2.9494 (3) angstrom] are bridged by four 4-methylbenzoate (PMB) anions. The four ... -
Diaquabis(2-bromobenzoato-kappa O)bis(nicotinamide-kappa N-1)zinc(II)
(Int Union Crystallography, 2009)The title Zn-II complex, [Zn(C7H4BrO2)(2)(C6H6N2O)(2)(H2O)(2)], is centrosymmetric with the Zn atom on an inversion center. The molecule contains two 2-bromobenzoate (BB) and two nicotinamide (NA) ligands and two coordinated ...