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1

Lovejoy, David B., Des R. Richardson, and Paul V. Bernhardt. "2-Hydroxy-1-naphthaldehyde 2-methylthiosemicarbazone." Acta Crystallographica Section C Crystal Structure Communications 56, no. 3 (2000): 341–42. http://dx.doi.org/10.1107/s0108270199015140.

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2

Maniukiewicz, W., and M. Bukowska-Strzyżewska. "Structure of 2-hydroxy-1-naphthaldehyde." Acta Crystallographica Section C Crystal Structure Communications 48, no. 7 (1992): 1324–26. http://dx.doi.org/10.1107/s0108270191013628.

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3

Ahmed, Ahmed Ibrahim, and Enaam Ismail Yousif. "New Metal Complexes with AZO ligand; Synthesis, Spectral Characterisation and Biological Evaluation." Pakistan Journal of Medical and Health Sciences 16, no. 7 (2022): 550–53. http://dx.doi.org/10.53350/pjmhs22167550.

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The new Azo ligand and its metal complexes have been prepared and characterized The reaction of 4-nitroaniline and 2-hydroxy-1-naphthaldehyde in a 1:1 mole ratio resulted in the synthesis of ((E)-2-hydroxy-3-((4-nitrophenyl) diazenyl)-1-naphthaldehyde) (HL). The separation of monomeric complexes was accomplished by reacting ((E)-2-hydroxy-3-((4-nitrophenyl)diazenyl)-1-naphthaldehyde) (HL) with Cr, Mn II, Co II, Ni II, and Cu II metal ions in a mole ratio of 2:1 (L: M). Elemental microanalysis, magnetic susceptibility, conductance, FT-IR, electronic spectra, and 1HNMR, 13C-NMR, and mass spectra
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4

Zhu, Li-Na, Chang-Qing Li, Xiao-Zeng Li, and Rong Li. "Bis(2-hydroxy-1-naphthaldehyde) oxaloyldihydrazone dihydrate." Acta Crystallographica Section E Structure Reports Online 62, no. 10 (2006): o4603—o4605. http://dx.doi.org/10.1107/s1600536806037615.

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5

Narang, Krishan K., and Meena K. Singh. "Polymeric complexes of bivalent transition metal ions with 2-hydroxy-1-naphthaldehyde oxaldihydrazone and 2-hydroxy-1-naphthaldehyde malondihydrazone." Transition Metal Chemistry 12, no. 5 (1987): 385–88. http://dx.doi.org/10.1007/bf01171642.

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6

Valdés-Martínez, Jesús, Simón Hernández-Ortega, and Victor Bautista Jimenez. "Ammine[2-hydroxy-1-naphthaldehyde 4-piperidylthiosemicarbazonato]nickel(II)." Acta Crystallographica Section E Structure Reports Online 58, no. 12 (2002): m710—m711. http://dx.doi.org/10.1107/s1600536802020184.

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7

Chowdhury, Papia, Subhasis Panja, and Sankar Chakravorti. "Excited State Prototropic Activities in 2-Hydroxy 1-Naphthaldehyde." Journal of Physical Chemistry A 107, no. 1 (2003): 83–90. http://dx.doi.org/10.1021/jp026404q.

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8

Martínez, R. Fernando, Martín Ávalos, Reyes Babiano, et al. "Tautomerism in Schiff bases. The cases of 2-hydroxy-1-naphthaldehyde and 1-hydroxy-2-naphthaldehyde investigated in solution and the solid state." Organic & Biomolecular Chemistry 9, no. 24 (2011): 8268. http://dx.doi.org/10.1039/c1ob06073b.

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9

Huang, Jing, Lei Yang, Minglian Fu, Zhangxu Chen, and Xiaojin Huang. "Theoretical investigations on the excited-state intramolecular proton transfer in the solvated 2-hydroxy-1-naphthaldehyde carbohydrazone." Open Chemistry 20, no. 1 (2022): 785–92. http://dx.doi.org/10.1515/chem-2022-0199.

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Abstract The vast applications of 2-hydroxy-1-naphthaldehyde-derived systems in the sensors originate from their unusual excited-state intramolecular proton transfer (ESIPT) fluorescence in the molecules. The mechanism of ESIPT fluorescence in the solvated 2-hydroxy-1-naphthaldehyde carbohydrazone (HNLSC) system was investigated by ab initio time-dependent density functional theory (TDDFT) calculation. The solvation stabilized both ground state and excited state in the enol form, and the medium intramolecular interaction ensured the bond break, bond-forming and proton transfer in the conversio
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10

You, Zhong-Lu, Jia Wang, and Jing-Yun Chi. "4-{[(2-Hydroxy-1-naphthyl)methylidene]amino}-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one." Acta Crystallographica Section E Structure Reports Online 62, no. 4 (2006): o1652—o1653. http://dx.doi.org/10.1107/s160053680601110x.

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The title compound, C22H19N3O2, is a Schiff base compound derived from 4-aminoantipyrine and 2-hydroxy-1-naphthaldehyde. As expected, the two crystallographically independent molecules adopt trans configurations about the central C=N bonds.
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11

Li, Shaoshun, Qijing Zhang, Jinyun Dong, and Guang Huang. "An Efficient Synthesis of 1-Hydroxy-5,8-dimethoxy-2-naphthaldehyde." HETEROCYCLES 96, no. 2 (2018): 334. http://dx.doi.org/10.3987/com-17-13859.

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12

Mañes, J., P. Campillos, G. Font, H. Martre, and P. Prognon. "Extraction-spectrophotometric determination of hydrazine with 2-hydroxy-1-naphthaldehyde." Analyst 112, no. 8 (1987): 1183–84. http://dx.doi.org/10.1039/an9871201183.

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13

Salman, Salman R. "Conformational preference of substituted naphthalenes—IV. 2-Hydroxy-1-naphthaldehyde." Spectrochimica Acta Part A: Molecular Spectroscopy 42, no. 4 (1986): 409–10. http://dx.doi.org/10.1016/0584-8539(86)80032-0.

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14

R.N., Prasad, Agrawal Mithlesh, Ratnani Raju, and Saraswat Keerti. "Mixed ligand complexes of alkaline earth metals. Part-XV. MgII, CaII, SrII and BaII complexes with 2-hydroxy-1-naphthaldehyde and 2-hydroxybenzophenone, 5-bromosalicylaldehyde or 5-chlorosalicylaldehyde." Journal of Indian Chemical Society Vol. 83, Oct 2006 (2006): 957–60. https://doi.org/10.5281/zenodo.5830324.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail </em>: prasadraghunandan@yahoo.com Department of Pure and Applied Chemistry, M. D. S. University, Ajmer-305 009, Rajasthan, India <em>Manuscript received 31 October 2005, revised 26 June 2006, accepted 27 June 2006</em> Reactions of Mg<sup>ll</sup>, Ca<sup>ll</sup>, Sr<sup>ll</sup> and Ba<sup>ll</sup> chlorides with 2-hydroxy-1-naphthaldehyde and 2-hydroxybenzophenone, 5-bromosalicylaldehyde or 5-chlorosalicylaldehyde in 1 : 1 : 1 molar ratios have yielded mixed ligand complexes of the type [MLL&#39;(
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15

Roy, Partha. "Recent advances in the development of fluorescent chemosensors for Al3+." Dalton Transactions 50, no. 21 (2021): 7156–65. http://dx.doi.org/10.1039/d1dt00901j.

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The synthetic procedures and sensing properties of fluorescent chemosensors for Al<sup>3+</sup> based on 2-hydroxy-1-naphthaldehyde, salicylaldehyde, rhodamine, coumarin, MOFs, etc. have been accounted.
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16

Prasad De, Sankar, Sankarlal Ash, Sudipta Dalai, and Ajay Misra. "A DFT-based comparative study on the excited states intramolecular proton transfer in 1-hydroxy-2-naphthaldehyde and 2-hydroxy-3-naphthaldehyde." Journal of Molecular Structure: THEOCHEM 807, no. 1-3 (2007): 33–41. http://dx.doi.org/10.1016/j.theochem.2006.12.010.

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17

Malik, Abida Naseem, Akbar Ali, Muhammad Ashfaq, et al. "A synthetic approach towards drug modification: 2-hydroxy-1-naphthaldehyde based imine-zwitterion preparation, single-crystal study, Hirshfeld surface analysis, and computational investigation." RSC Advances 14, no. 10 (2024): 6476–93. http://dx.doi.org/10.1039/d3ra08727a.

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This work is about the modification of pyrimethamine and 4-amino-N-(2,3-dihydrothiazol-2-yl)benzenesulfonamide via condensation reaction with 2-hydroxy-1-naphthaldehyde to produce new organic zwitterionic compounds DSPIN and ACPIN in methanol.
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18

Mithlesh, Agrawal, N. Prasad R. та Kaur Gurjeet. "Synthesis and characterization of mixed ligand complexes of Mn11 with 2-hydroxy-1-naphthaldehyde and salicylaldehyde, substituted salicylaldehyde, hydroxy aryl ketones or β-diketones". Journal of Indian Chemical Society Vol. 89, Feb 2012 (2012): I97–203. https://doi.org/10.5281/zenodo.5752472.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail</em> : mithagr@gmail.com <em>Manuscript received 02 November 2010, revised 17 June 2011, accepted 20 June 2011</em> A series of mixed ligand complexes of Mn<sup>II</sup> of the type [MnLL&#39;(H<sub>2</sub>0)<sub>2</sub>], (where HL = 2-hydroxy-1-naphthaldehyde and HL&#39; = salicylaldehyde, 5-bromosalicylaldehyde, 5-nitrosalicylaldehyde, 2-hydroxyacetophenone, 2- hydroxypropiophenone, 2-hydroxybenzophenone, pentane-2,4-dione, I-phenylbutane-1,3-dione or 1,3-diphenylpropane-1 ,3- dione) have been synt
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19

Hou, Lingjie, Wenting Liang, Chenhua Deng, et al. "A sensitive OFF–ON–OFF fluorescent probe for the cascade sensing of Al3+ and F− ions in aqueous media and living cells." RSC Advances 10, no. 36 (2020): 21629–35. http://dx.doi.org/10.1039/d0ra02848g.

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A simple Schiff-base ligand 2-hydroxy-1-naphthaldehyde semicarbazone (HNS) was synthesized and applied to the sequential sensing of Al<sup>3+</sup> and F<sup>−</sup> ions in aqueous media and live cells.
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20

Jiang, Xue-Yue, Liang-Quan Sheng, Chong-Fu Song, et al. "Mechanism, kinetics, and antimicrobial activities of 2-hydroxy-1-naphthaldehyde semicarbazone as a new Jack bean urease inhibitor." New Journal of Chemistry 40, no. 4 (2016): 3520–27. http://dx.doi.org/10.1039/c5nj01601k.

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A new inhibitor of jack bean urease, 2-hydroxy-1-naphthaldehyde semicarbazone, was synthesized and employed to investigate the inhibitory mechanism of HNDSC on jack bean urease by kinetic and fluorescence titration assay, and its antibacterial activities were also investigated.
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21

Mari-Buigues, J., J. Mańes-Vinuesa, R. Garcia-Domenech, and G. Pous-Miralles. "Spectrophotometric Determination of Hydralazine with 2-Hydroxy-1-naphthaldehyde in Pharmaceuticals." Journal of Pharmaceutical Sciences 80, no. 7 (1991): 690–92. http://dx.doi.org/10.1002/jps.2600800716.

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22

Ghosh, Abhijit, Archya Sengupta, Ansuman Chattopadhyay, and Debasis Das. "A single probe for sensing both acetate and aluminum(iii): visible region detection, red fluorescence and human breast cancer cell imaging." RSC Advances 5, no. 31 (2015): 24194–99. http://dx.doi.org/10.1039/c4ra16768f.

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A single probe (L) can recognise both AcO<sup>−</sup> and Al<sup>3+</sup> as prepared by coupling 2-hydroxy-1-naphthaldehyde with hydrazine. The probe allows both colorimetric and fluorescence detection of both the ions.
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23

Kumar, Robin, та Natesan Thirupathi. "Syntheses, characterisation, and catalytic role of (η5-C5Me5)Rh(iii) guanidinato complexes in transfer hydrogenation (TH) and TH–etherification". RSC Advances 7, № 54 (2017): 33890–904. http://dx.doi.org/10.1039/c7ra04152g.

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Complex 3 has been synthesised and its catalytic activity in base assisted and base free transfer hydrogenation (TH) of a variety of carbonyl compounds and TH–etherification of substrates such as 2-hydroxy-1-naphthaldehyde have been achieved.
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24

Xu, Yuankang, Hanyu Wang, Jinyan Zhao, et al. "A dual functional fluorescent sensor for the detection of Al3+ and Zn2+ in different solvents." New Journal of Chemistry 43, no. 36 (2019): 14320–26. http://dx.doi.org/10.1039/c9nj03298c.

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A new fluorescent sensor, X, was designed and synthesized based on imidazo[2,1-b]thiazole and 2-hydroxy-1-naphthaldehyde, which could be used to detect Al<sup>3+</sup> in methanol buffer solution and detect Zn<sup>2+</sup> in ethanol buffer solution, respectively.
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25

Xu, Dong-Yan, Ying Liu, Ming-Li Liu, Jun-Fa Wei, and Jian-Min Dou. "[2-Oxido-1-naphthaldehyde (2-hydroxybenzoyl)hydrazonato]pyridinecopper(II)." Acta Crystallographica Section E Structure Reports Online 62, no. 4 (2006): m671—m673. http://dx.doi.org/10.1107/s1600536806006696.

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The approximately planar complex molecule, [Cu(C18H12N2O3)(C5H5N)], contains one L 2− ligand (L 2− is the dianion of 2-hydroxy-1-naphthaldehyde 2-hydroxybenzoylhydrazone), one Cu atom and one pyridine molecule. The Cu centre shows square-planar N2O2Cu coordination. The tridentate dianion has an intramolecular N...H—O hydrogen bond. Each pair of adjacent molecules is linked together by π–π stacking and Cu...N interactions, which lead to the existence of a dimer. Owing to C—H...O hydrogen bonds, these dimers are further assembled into a two-dimensional framework.
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26

Journal, Baghdad Science. "Spectroscopic Studies and Thermal Analysis of New Azo Dyes Ligands and their Complexes with some Transition of Metal Ions." Baghdad Science Journal 13, no. 3 (2018): 511–23. http://dx.doi.org/10.21123/bsj.13.3.511-523.

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New Azo ligands HL1 [2-Hydroxy-3-((5-mercapto-1,3,4-thiadiazol-2-yl)diazenyl)-1-naphth aldehyde] and HL2 [3-((1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)diazenyl)-2-hydroxy-1-naphthaldehyde] have been synthesized from reaction (2-hydroxy-1-naphthaldehyde) and (5-amino-1,3,4-thiadiazole-2-thiol) for HL1 and (4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one) for HL2. Then, its metal ions complexes are synthesized with the general formula; [CrHL1Cl3(H2O)], [VOHL1(SO4)] [ML1Cl(H2O)] where M = Mn(II), Co(II), Ni(II) and Cu(II), and general formula; [Cr(L2)2 ]Cl and [M(L2)2] where M =
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27

Fernandez-G., Juan M., Maria J. Rosales-Hoz, Manuel F. Rubio-Arroyo, R. Salcedo, R. A. Toscano, and A. Vela. "Synthesis, crystal structure, and EHMO calculations for the nickel(II) complexes of imines derived from salicylaldehyde, 2-hydroxy-1-naphthaldehyde, and 3-hydroxy-2-naphthaldehyde." Inorganic Chemistry 26, no. 3 (1987): 349–57. http://dx.doi.org/10.1021/ic00250a003.

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28

SAHADBV., R. K. SHARMA, and K. SINDHWANI S. "Potentiometric Studies on Complexation Equilibria between some Transition Metal Ions and 2-Hydroxy-1-naphthaldehyde Thiosemicarbazone in Dioxane -Water Medium." Journal of Indian Chemical Society Vol. 70, Jan 1993 (1993): 68–70. https://doi.org/10.5281/zenodo.6032020.

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Department of Chemistry, University of Delhi, Delhi-110 007 <em>Manuscript received&nbsp;26 August 1991, revised&nbsp;13&nbsp;October&nbsp;1992, accepted&nbsp;5 November&nbsp;1993</em> Potentiometric Studies on Complexation Equilibria between some Transition Metal Ions and 2-Hydroxy-1-naphthaldehyde Thiosemicarbazone in Dioxane -Water Medium
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29

Ioannou, P. C., and D. G. Konstantianos. "Fluorometric determination of magnesium in serum with 2-hydroxy-1-naphthaldehyde salicyloylhydrazone." Clinical Chemistry 35, no. 7 (1989): 1492–96. http://dx.doi.org/10.1093/clinchem/35.7.1492.

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Abstract This simple, rapid, sensitive fluorometric method for determining magnesium is based on formation of a fluorescent complex of magnesium with 2-hydroxy-1-naphthaldehyde salicyloyl-hydrazone in alkaline ethanolic medium (lambda ex = 420 nm, lambda em = 460 nm). The detection limit of the method is 0.05 microgram/L (2 nmol/L) and the relative standard deviations (CVs) are 0.8%, 1.1%, and 2.5% at magnesium concentrations of 50, 5.0, and 0.50 microgram/L, respectively. The standard curve is linear from 0 to 250 micrograms/L (0-10 mumol/L). We investigated the chemistry of the reaction, and
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30

Ukhin, Lev Yu, Zinaida S. Morkovnik, Olga S. Philipenko, Sergei M. Aldoshin, and Oleg V. Shishkin. "The unusual transformation of 2-hydroxy-1-naphthaldehyde in reactions with morpholine." Mendeleev Communications 7, no. 4 (1997): 153–54. http://dx.doi.org/10.1070/mc1997v007n04abeh000785.

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31

Mañes, J., M. J. Gimeno, J. C. Moltó, and G. Font. "Fluorimetric determination of hydrazine in isoniazid formulations with 2-hydroxy-1-naphthaldehyde." Journal of Pharmaceutical and Biomedical Analysis 6, no. 6-8 (1988): 1023–27. http://dx.doi.org/10.1016/0731-7085(88)80128-6.

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32

Adhikary, Tirtha Pratim, Papia Chowdhury, and Sankar Chakravorti. "Modulation of photophysics of 2-hydroxy 1-naphthaldehyde in non-ionic micelles." Chemical Physics Letters 442, no. 4-6 (2007): 504–10. http://dx.doi.org/10.1016/j.cplett.2007.06.028.

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33

López-de-Alba, P. L., S. García González, and J. Gómez Lara. "Gravimetric determination of uranyl ion with 2-hydroxy-1-naphthaldehyde /2H-1N/." Journal of Radioanalytical and Nuclear Chemistry Letters 136, no. 3 (1989): 203–10. http://dx.doi.org/10.1007/bf02164120.

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34

Hao, Yu-Mei. "1-[(2-Anilinoethyl)iminiomethyl]-2-naphtholate." Acta Crystallographica Section E Structure Reports Online 65, no. 6 (2009): o1400. http://dx.doi.org/10.1107/s1600536809019096.

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The title Schiff base compound, C19H18N2O, was prepared by the reaction of equimolar quantities of 2-hydroxy-1-naphthaldehyde withN-phenylethane-1,2-diamine in a methanol solution. The molecule adopts a zwitterionic conformation with the naphthyl OH group deprotonated and the imine N atom protonated. An intramolecular N—H...O hydrogen bond forms between them. The dihedral angle between the benzene ring and the naphthyl system is 86.9 (2)°. In the crystal structure, molecules are linked through intermolecular N—H...O hydrogen bonds, forming chains running along thebaxis.
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35

Aboud, Wasfi, Harith Y. Mahmood, Rasha M. Othman, and Wasan M. Shaker. "The NMR Study and Antimicrobial Activity of Some Schiff Bases Derived From Sulphonamide Drug." JOURNAL OF ADVANCES IN CHEMISTRY 12, no. 2 (2016): 4009–17. http://dx.doi.org/10.24297/jac.v12i2.2157.

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Some Schiff base compounds derived from sulfonamide drug were synthesized by reaction of 4-aminobenzenesulfonamide with aromatic aldehydes (2-hydroxy-1-naphthaldehyde, 3,4-dihydroxybenzaldehyde and 2-hydroxy benzaldehyde) in good yields. Characterization of synthesized compound was carried by elemental analysis, IR, 1H,13C, HSQC and HMBC- NMR spectroscopy. The synthesized compounds were screened for their antibacterial activity against Staphylococcus aureus, Streptococcus sp., Bacillus subtillus, Escherichia coli and Klebsiella pneumonia. Additionally, the compounds were tested for antifungici
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36

Salman, Salman R., and Fadhil S. Kamounah. "MASS SPECTRAL STUDY OF TAUTOMERISM IN SOME 1-HYDROXY-2-NAPHTHALDEHYDE SCHIFF BASES." Spectroscopy Letters 35, no. 3 (2002): 327–35. http://dx.doi.org/10.1081/sl-120005669.

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37

Kibardina, L. K., A. B. Dobrynin, A. R. Burilov, and M. A. Pudovik. "Reaction of N,N-Bis(2-hydroxy-1-naphthaldehyde)-ethylenediimine with ethylene chlorophosphite." Russian Journal of General Chemistry 81, no. 8 (2011): 1728–29. http://dx.doi.org/10.1134/s1070363211080251.

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38

Özbek, Neslihan, Gülten Kavak, Yusuf Özcan, Semra İde, and Nurcan Karacan. "Structure, antibacterial activity and theoretical study of 2-hydroxy-1-naphthaldehyde-N-methylethanesulfonylhydrazone." Journal of Molecular Structure 919, no. 1-3 (2009): 154–59. http://dx.doi.org/10.1016/j.molstruc.2008.09.010.

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39

Miralles, G. Pous, R. García-Domenech, J. Mañes Vinuesa, and J. Marí Buigues. "Spectrophotometric determination of dihydralazine in pharmaceuticals after derivatization with 2-hydroxy-1-naphthaldehyde." Journal of Pharmaceutical and Biomedical Analysis 11, no. 8 (1993): 647–50. http://dx.doi.org/10.1016/0731-7085(93)80170-6.

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40

Gholami, Hamid Reza, and Sakineh Asghari. "Synthesis of Novel Benzochromenes Using Triarylphosphines, Alkyl X-Phenylpropiolates and 2-Hydroxy-1-Naphthaldehyde." Journal of Chemical Research 42, no. 4 (2018): 206–9. http://dx.doi.org/10.3184/174751918x15234707524548.

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The reactions of a series of alkyl X-phenylpropiolates with 2-hydroxy-1-naphthaldehyde and triphenylphosphine led to benzochromenes in moderate yields. When the reactions were performed in the presence of bis(4-methoxyphenyl)phenylphosphine instead of triphenylphosphine, the rate and yields of the reactions increased. Reaction yields were enhanced for alkyl X-phenylpropiolates when X was an electron-deficient substituent such as CF3 or Cl, thus showing that the electronic effect of substituents plays an important role in the reactions.
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41

Gerontitis, Ioannis E., Petros G. Tsoungas, and George Varvounis. "Naphtho[1,8-de][1,2]Oxazin-4-ol: Precursor to 1,2,8-Trisubstituted Naphthalenes and 1-Unsubstituted Naphtho[1,2-d]isoxazole 2-Oxide: A Novel Isomerization of the N-Oxide to Nitrile Oxide en Route to Isoxazol(in)es." Molecules 29, no. 1 (2023): 48. http://dx.doi.org/10.3390/molecules29010048.

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Naphtho[1,8-de][1,2]oxazin-4-ol and its acyl or benzyl derivatives ring open to various 2,8-dihydroxy-1-naphthonitriles, which, through (de)protection protocols and reduction, afford the target (E)-2-hydroxy-8-methoxy-1-naphthaldehyde. This was converted to its corresponding oxime, which was oxidatively o-cyclized with phenyliodine(III) diacetate (PIDA) to 9-methoxynaphtho[1,2-d]isoxazole 2-oxide. The latter, in deuterated DMSO at room temperature, was rearranged to its isomer 2-hydroxy-8-methoxy(naphthalen-1-yl)nitrile oxide. The isomerization was detected by time-course plot 1H NMR spectrosc
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42

R., N. Prasad, Mohan Sharma Kirti та Agrawal Anjali. "Synthesis and characterization of mixed ligand complexes of cobalt(II) with 2-hydroxy-1-naphthaldehyde and salicylaldehyde, hydroxyaromatic ketones or β-diketones". Journal Of Indian Chemical Society Vol. 84, Jan 2007 (2007): 34–36. https://doi.org/10.5281/zenodo.5810271.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail </em>: prasadraghunandan@yahoo.com <em>Manuscript received 25 July 2006, revised 9 November 2006, accepted 10 November 2006</em> Mixed ligand complexes of general formula [Co(L)(L&#39;)(H<sub>2</sub>O)<sub>2</sub>] (where HL = 2-hydroxy&middot;l-naphthaldehyde, HL&#39; = 2-hydroxyacetophenone, 2-hydroxypropiophenone, 2-hydroxybenzophenone, pentane-2;4-dione, 1 phenyl butane-1 ,3-dione or 1,3-diphenylpropane-1,3-dione) have been synthesized and characterized by elemental analyses, TLC, conductances, ma
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43

Thabet, H. Kh, Mohd Imran, Mohd Imran, Saleh Alaql, and M. H. M. Helal. "Bis(2-cyanoacetamide) in Heterocyclic Synthesis: Synthesis of Some Bis[2-oxopyridine, 2-iminochromene, Chromeno[3,4-c]pyridine, Benzochromeno[3,4-c]pyridine] Derivatives." Oriental Journal Of Chemistry 40, no. 1 (2024): 65–73. http://dx.doi.org/10.13005/ojc/400108.

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N,N'-(methylenebis(1,4-phenylene))bis-(2-cyanoacetamide) was exploited as a precursor for synthesing some bis (benzylidene 5a-c, pyridines 7, 8, 10a,b, chromene 14, benzochromene 15) derivatives containing diphenyl-methylene spacer via the reaction with each of aromatic aldehydes, pentane-2,4-dione, acetaldehyde/ malononitrile, arylidene-malononitriles, ethyl cinnamates, 2-hydroxybenzaldehyde, and 2-hydroxy-1-naphthaldehyde). Bis(chromeno[3,4-c]pyridines 16&amp;18) were synthesized via Michael's addition of malononitrile or ethyl cyanoacetate to bis(chromene) derivative. The newly prepared com
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44

Hamad Al-Dabbagh, Shahinaz A. "Synthesis and characterization of ligands derived 2-hydroxy-1- naphthaldehyde and their complexes with divalent metal ions (Mn+2, Fe+2, Ni +2)." Iraqi Journal of Physics (IJP) 16, no. 37 (2018): 79–87. http://dx.doi.org/10.30723/ijp.v16i37.79.

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In this work, Schiff base ligands L1: N, N-bis (2-hydroxy-1-naphthaldehyde) hydrazine, L2: N, N-bis (salicylidene) hydrazine, and L3:N –salicylidene- hydrazine were synthesized by condensation reaction. The prepared ligands were reacted with specific divalent metal ions such as (Mn2+, Fe2+, Ni2+) to prepare their complexes. The ligands and complexes were characterized by C.H.N, FT-IR, UV-Vis, solubility, melting point and magnetic susceptibility measurements. The results show that the ligands of complexes (Mn2+, Fe2+) have octahedral geometry while the ligands of complexes (Ni2+) have tetrahed
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45

Gao, Wentao, Meiru Zheng, and Yang Li. "A novel and facile synthesis of 3-(2-benzofuroyl)- and 3,6-bis(2-benzofuroyl)carbazole derivatives." Beilstein Journal of Organic Chemistry 7 (November 17, 2011): 1533–40. http://dx.doi.org/10.3762/bjoc.7.180.

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A facile synthesis of hitherto unreported 3-(2-benzofuroyl)carbazoles 3a–k, 3,6-bis(2-benzofuroyl)carbazoles 5a–k, and naphtho[2,1-b]furoylcarbazoles 3l and 5l is described. The synthesis mainly relies on the ultrasound-assisted Rap–Stoermer reaction of 3-chloroacetyl- (1) or 3,6-dichloroacetyl-9-ethyl-9H-carbazole (4) with various salicylaldehydes 2a–k as well as 2-hydroxy-1-naphthaldehyde (2l) in CH3CN with the presence of PEG-400 as catalyst. The procedure offers easy access to benzofuroylcarbazoles in short reaction times and the products are obtained in moderate to good yields.
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46

Dodoff, Nicolay I., Ümmühan Özdemir, Nurcan Karacan, Milka Ch Georgieva, Spiro M. Konstantinov, and Miglena E. Stefanova. "Schiff Bases of Methanesulfonylhydrazine. Synthesis, Spectroscopic Characterization, Conformational Analysis, and Biological Activity." Zeitschrift für Naturforschung B 54, no. 12 (1999): 1553–62. http://dx.doi.org/10.1515/znb-1999-1213.

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Three novel Schiff bases: salicylaldehyde methanesulfonylhydrazone (1), 2-hydroxyacetophenone methanesulfonylhydrazone (2) and 2-hydroxy-1-naphthaldehyde methanesulfonylhydrazone (3) have been synthesized. Compounds 1-3, as well as acetone methanesulfonylhydrazone (4) have been characterized by TLC, 1H NMR and IR spectra. The spectroscopic results for 1-3 have revealed the presence of an intramolecular hydrogen bond between the hydroxyl group and the imine N atom. The conformational isomerism of 1-4 with respect to the rotations around the SN and NN bonds have been studied by the method of mol
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47

Alharbi, Osama, Ateyatallah Aljuhani, Ziad Moussa, Hanan I. Althagbi, and Moustafa A. Gouda. "Synthesis of new 2H-2-iminocoumarins incorporating fluorobenzene moiety." INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY 35, no. 02 (2025): 319. https://doi.org/10.59467/ijhc.2025.35.319.

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Fluorine plays a crucial role in modern pharmaceutical development owing to its distinct properties, such as high electronegativity and a compact atomic size. These features enable fluorine to improve a drug efficacy, selectivity, metabolic stability, and cell membrane permeability. To leverage these benefits, chromene-3-carboxamide derivatives (15a-e), incorporating a 2-fluorobenzene core, were synthesized by condensing salicylaldehydes (14a-d) or 1-hydroxy-2- naphthaldehyde (14e) with N-(2-fluorophenyl)acetamide (13) in a piperidine/ethanol mixture.. KEYWORDS :Cyanoacetamides, Chromene, Coum
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48

Pradnya, Lokhande. "Solvent Extraction and Spectrophotometric Determination of Nickel II using 2 - Hydroxy 1 Naphthaldehyde Thiosemicarbazone HNT as an Analytical Reagent." International Journal of Trend in Scientific Research and Development 3, no. 3 (2019): 694–97. https://doi.org/10.31142/ijtsrd22964.

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2 - hydroxy 1 naphthaldehyde thiosemicarbazone HNT is synthesized in laboratory and characterized by NMR, IR and elemental analysis for its purity. This reagent forms a yellowish green coloured complex with Ni II which can be quantitatively extracted into ethyl acetate at pH 7. Complex in ethyl acetate shows an intense absorption peak 430 nm. It is observed that Beer&#39;s law is obeyed in the range of 10&micro;g to 100&micro;g of metal solution. It gives linear and reproducible graph under appropriate conditions, the complex having a molar absorptivity of 0.275 x 10 6L mol 1 cm 1, Sandell&#39
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49

Liu, Jing-zhou, Jun Li, Gao-mai Yang, et al. "Synthesis and photodynamic activity of new meso-tetranaphthylporphyrins derivatives." Journal of Porphyrins and Phthalocyanines 14, no. 08 (2010): 722–26. http://dx.doi.org/10.1142/s1088424610002549.

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The meso-tetranaphthylporphyrins (TNP) derivatives, 5-(2-hydroxy-1-naphthaldehyde-4-naphthyleneimine)-10,15,20-trinaphthylporphyrin 3, 5-(salicylidene-4-naphthyleneamine)-10,15,20- trinaphthylporphyrin 4 and 5-(thiophene-2-carboxaldehyde-4-naphthyleneimine)-10,15,20-trinaphthylporphyrin 5, were synthesized by the reaction of 5-(4-aminonaphthyl)-l0,15,20-trinaphthylporphyrin 2 with different aldehydes. Their photodynamic activity against K562 cells were evaluated in vitro. They displayed low levels or no dark toxicity and high phototoxicity to K562 cells, especially for 5, which offers potentia
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50

Téllez S., Claudio A., and Jacobo Gómez Lara. "Vibrational Spectra and Normal Framework Coordinate Analysis of Uranyl Bis(2-Hydroxy-1-Naphthaldehyde)." Journal Of The Brazilian Chemical Society 7, no. 6 (1996): 505–11. http://dx.doi.org/10.5935/0103-5053.19960090.

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