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Journal articles on the topic '1-phenyl-2-thiourea'

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Published: 7 September 2021

Last updated: 29 July 2025

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1

West, D. X., A. K. Hermetet, L. J. Ackerman, J. Valdés-Martínez, and S. Hernández-Ortega. "3-Phenyl-1-(2-pyridyl)thiourea." Acta Crystallographica Section C Crystal Structure Communications 55, no. 5 (1999): 811–13. http://dx.doi.org/10.1107/s0108270198018083.

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2

Bhattacharjee, Tirtha, Prasanta Gogoi, Vedavati G. Puranik, Rupesh L. Gawade, and Pranjit Barman. "1-Benzoyl-3-[(2-benzylsulfanyl)phenyl]thiourea." Acta Crystallographica Section C Crystal Structure Communications 68, no. 12 (2012): o485—o487. http://dx.doi.org/10.1107/s0108270112045167.

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In the title compound, C21H18N2OS2, a strong intramolecular N—H...O hydrogen bond [N...O = 2.642 (3) Å] between the amide N atom and the benzoyl O atom forms an almost planar six-membered ring in the central part of the molecule. In the crystal, molecules are packed through weak N—H...S interactions. Intra- and intermolecular hydrogen bonds and van der Waals interactions are the stabilizing forces for the crystal structure.

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3

Yue, Huadong, Yifeng Wang, Aibao Xia, Shuping Luo, and Danqian Xu. "1-[3,5-Bis(trifluoromethyl)phenyl]-3-(2-pyridyl)thiourea." Acta Crystallographica Section E Structure Reports Online 64, no. 5 (2008): o858. http://dx.doi.org/10.1107/s1600536808009768.

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4

Xing, Zhi-Yong, and Hai-Tao Zhao. "1-(2-Chlorophenyl)-3-[(phenyl)(4-tolylimino)methyl]thiourea." Acta Crystallographica Section E Structure Reports Online 62, no. 6 (2006): o2268—o2269. http://dx.doi.org/10.1107/s1600536806016916.

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5

Venkatachalam, TK, Elise A. Sudbeck, Chen Mao, and Fatih M. Uckun. "Piperidinylethyl, Phenoxyethyl and Fluoroethyl Bromopyridyl Thiourea Compounds with Potent Anti-HIV Activity." Antiviral Chemistry and Chemotherapy 11, no. 5 (2000): 329–36. http://dx.doi.org/10.1177/095632020001100503.

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Derivatives of piperidinylethyl, phenoxyethyl and fluoroethyl bromopyridyl thioureas were designed and synthesized as non-nucleoside reverse transcriptase inhibitors (NNRTIs) of HIV-1 reverse transcriptase (RT). The anti-HIV activity of these compounds was examined by determining their ability to inhibit the replication of the HIV-1 strain HTLVIIIB in human peripheral blood mononuclear cells. The unsubstituted parent pyridyl thiourea compound N-[2-(1-piperidine)ethyl]-N′-[2-(pyridyl)] thiourea (1) exhibited no anti-HIV activity, even at 100 μM. However, the thiourea derivatives that contain a

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6

Sheena Mary, Y., V. V. Aswathy, C. Yohannan Panicker, et al. "Spectroscopic, single crystal XRD structure, DFT and molecular dynamics investigation of 1-(3-chloro-4-fluorophenyl)-3-[3-(trifluoromethyl)phenyl]thiourea." RSC Advances 6, no. 113 (2016): 111997–2015. http://dx.doi.org/10.1039/c6ra21396k.

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7

Ferrari, Marisa Belicchi, Giovanna Gasparri Fava, Corrado Pelizzi, and Pieralberto Tarasconi. "Synthesis and structural characterization of chloro-(triphenylphosphine)-[1-phenyl-3-(2-pyridyl)-2-thiourea]Cu(I) and chloro-bis[1-[phenyl-3-(2-pyridyl)-2-thiourea]-Cu(I)." Inorganica Chimica Acta 97, no. 1 (1985): 99–109. http://dx.doi.org/10.1016/s0020-1693(00)87996-7.

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8

Narule, Meghasham, Jyotsna Meshram, B. Santhakumari, and A. Shanware. "Synthesis of 2-[4-(10H-Substituted Phenothiazine-3-yl)-6-Pyrimidin-2-Phenylthiol/ol/amine/thiol] Pyrroles." E-Journal of Chemistry 4, no. 1 (2007): 53–59. http://dx.doi.org/10.1155/2007/572543.

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2-[4-Hydroxy benz-1(propene-1-one)]Pyrrole II on treatment with phenyl thiourea, guanidine carbonate, urea and thiourea in alcoholic KOH yielded compounds III, IV, V, VI which on treatment with different aryl anilines gave compounds VII, VIII, IX, X which under goes cyclisation with sulphur and iodine to give 2-[4-(10H-substituted phenothiazine-3-yl)-6-pyrimidin-2-phenylthiol/-ol/-amine/-thiol] pyrrole XI(a-j), XII(a-j), XIII(a-j) and XIV(a-j) respectively. The structural products were characterized by elemental analysis and spectral data.

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9

V, Mujalda, S. Tiwari, V. Sharma, P. Saxena, and M. Shrivastava. "Synthesis of 3-chloro-4- (2-hydroxy-5-(substituted phenyl (diazyl)-N-[(4-oxo-2-phenylquinazoline 3(4H)-yl)]-2-oxoazetidine-1-carbothiamide Analogs as Potential Antimicrobial Agents." International Journal of Drug Design and Discovery 3, no. 2 (2025): 798–802. https://doi.org/10.37285/ijddd.3.2.8.

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Some new series of 3-chloro-4-(2-hydroxy-5-(substituted phenyl (diazyl)-N-[(4-oxo -2-phenylquinazoline 3(4H)-yl)]-2-oxoazetidine-1-carbothiamide have been synthesized by the reaction of 1-[2-hydroxyl–5–(substituted phenyl)diazyl benzylidene-3-(4-oxo-2-phenylquinazolin-3(4H)-yl) thiourea with chloroacetyl chloride and triethyl amine in 1,4 dioxane. The structure of synthesized compounds is confirmed by IR, NMR & Mass spectral studies. The antimicrobial activities of the synthesized compounds were evaluated by screening on different human pathogens using the disc diffusion assay.

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10

Rosiak, Damian, Andrzej Okuniewski, and Jarosław Chojnacki. "The influence of the type of halogen substituent and its position on the molecular conformation, intermolecular interactions and crystal packing for a series of 1-benzoyl-3-(halogenophenyl)thioureas." Acta Crystallographica Section C Structural Chemistry 77, no. 1 (2021): 11–19. http://dx.doi.org/10.1107/s2053229620015594.

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By the reaction of benzoyl chloride, potassium isothiocyanate and the appropriate halogenoaniline, i.e. 2/3/4-(bromo/iodo)aniline, we have obtained five new 1-benzoyl-3-(halogenophenyl)thioureas, namely, 1-benzoyl-3-(2-bromophenyl)thiourea and 1-benzoyl-3-(3-bromophenyl)thiourea, C14H11BrN2OS, and 1-benzoyl-3-(2-iodophenyl)thiourea, 1-benzoyl-3-(3-iodophenyl)thiourea and 1-benzoyl-3-(4-iodophenyl)thiourea, C14H11IN2OS. Structural and conformational features of the compounds have been analyzed using X-ray diffraction and theoretical calculations. The novel compounds were characterized by solid-

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11

Uckun, Fatih M., Chen Mao, Sharon Pendergrass, et al. "N-[2-(4-Methylphenyl)Ethyl]-N′-[2-(5-Bromopyridyl)]-Thiourea as a Potent Inhibitor of NNRTI-Resistant and Multidrug-Resistant Human Immunodeficiency Virus Type 1." Antiviral Chemistry and Chemotherapy 11, no. 2 (2000): 135–40. http://dx.doi.org/10.1177/095632020001100205.

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The composite non-nucleoside reverse transcriptase inhibitor (NNRTI) binding pocket model was used to study a number of thiourea analogues with different substitutions at the 4-phenyl position including N-[2-(4-methylphenyl)ethyl]-N′-[2-(5-bromopyridyl)]-thiourea (compound HI-244), which inhibited recombinant RT better than trovirdine or compound HI-275 with an unsubstituted phenyl ring. HI-244 effectively inhibited the replication of HIV-1 strain HTLVIIIB in human peripheral blood mononuclear cells with an IC50 value of 0.007 μM, which is equal to the IC50 value of trovirdine. Notably, HI-244

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12

Osman, Uwaisulqarni M., and Bohari M. Yamin. "1-(4-Methylbenzoyl)-3-{2-[3-(4-methylbenzoyl)thioureido]phenyl}thiourea." Acta Crystallographica Section E Structure Reports Online 67, no. 10 (2011): o2583. http://dx.doi.org/10.1107/s1600536811035586.

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13

0., S. PANWAR, K. ARORA S., and P. MATHUR S. "Spectrophotometric Determination of Cobalt(II) by Adsorption of its 1-Hydroxy-1-phenyl-3-benzyl- 2-thiourea Complex on Microcrystalline Naphthalene." Journal of Indian Chemical Society Vol. 72, Oct 1995 (1995): 745–46. https://doi.org/10.5281/zenodo.5909355.

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Research Laboratories, Government College, Ajmer-305 001 <em>Manuscript received 17 November /993, reiised 7 April 1994, accepted 23 May 1994</em> Spectrophotometric Determination of Cobalt(II) by Adsorption of its 1-Hydroxy-1-phenyl-3-benzyl- 2-thiourea Complex on Microcrystalline Naphthalene

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14

Yeo, Chien, and Edward Tiekink. "1-[N-Methyl-N-(Phenyl)amino]-3- (4-Methylphenyl)Thiourea." Molbank 2019, no. 1 (2019): M1052. http://dx.doi.org/10.3390/m1052.

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The title compound, 1-[N-methyl-N-(phenyl)amino]-3-(4-methylphenyl)thiourea (1), was synthesized by the reaction of 1-methyl-1-phenyl hydrazine and 4-tolyl isothiocyanate, and was characterized by spectroscopy (1H and 13C{1H} NMR, IR, and UV), elemental analysis as well as by single crystal X-ray crystallography. In the solid state, the molecule exists as the thioamide tautomer and features an anti-disposition of the thioamide–N–H atoms; an intramolecular N–H⋯N hydrogen bond is noted. The molecular conformation resembles that of the letter L. In the molecular packing, thioamide-N1–H⋯S1(thione)

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15

M., A. EL·MAGHRABY, K. KHALAFALLA A., E. HASSAN M., and A. SOLBIMAN H. "Synthesis and Studies on Heterocyclic Nitrogen Compounds." Journal of Indian Chemical Society Vol. 63, Oct 1986 (1986): 910–13. https://doi.org/10.5281/zenodo.6298866.

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Chemistry Department, Aswan-Paoulty of Science, Aswan, Egypt <em>Manuscript received 17 December 1986, accepted 2 August 2986</em> Condensation of 1-phenyl-3-methylpyrazoline-5-one with 4-aminoacetophenonc gave a quantitative yield of 1-phenyl-3-methylpyrazolidene-p-acetylaniline (1). Condensation of 1 with aromatic aldehydes yielded the corresponding pyrazolideneazomethinechalcones (2a - f). Interaction of 2 with hydrazines, hydroxylamine, urea, and thiourea afforded a new pyrazolidene azomethine pyrazolines, isooxazoles, pyrimidine and pyrimidine thione derivatives, respectively.

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16

Dhakhda, Sureshkumar K., Malay J. Bhatt, and Jyotindra J. Bhatt. "Synthesis, characterization and antioxidant activity of 2-(4-Phenyl-6-p-Tolylpyrimidin-2-ylthio)-N-(4-substituted Phenyl)acetamides." Research Journal of Chemistry and Environment 25, no. 11 (2021): 86–92. http://dx.doi.org/10.25303/2511rjce8692.

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A series of 2-(4-phenyl-6-p-tolylpyrimidin-2-ylthio)-N- (4-substituted phenyl)acetamide(4a-o) has been synthesized. Compounds have been characterized and tested for their antioxidant activity. The titled compounds (4a-o) have been synthesized by the reaction between 4-phenyl-6-p-tolylpyrimidine-2-thiol (2) with 2-chloro-N-substituted phenylacetamide (3ao) refluxed in acetone using catalytic amount of K2CO3. Compound (2) has been synthesized from (E)-1-phenyl- 3-p-tolylprop-2-en-1-one (1) with equimolar amount thiourea refluxed in alcoholic KOH to get compound (2). Starting compound chalcone wa

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17

Drzewiecka-Antonik, Aleksandra, Marta Struga, Agnieszka Głogowska, et al. "Synthesis, Structural Characterization and Biological Activity Evaluation of Novel Cu(II) Complexes with 3-(trifluoromethyl)phenylthiourea Derivatives." International Journal of Molecular Sciences 23, no. 24 (2022): 15694. http://dx.doi.org/10.3390/ijms232415694.

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Copper complexes with 1,3-disubstituted thiourea derivatives, all containing 3-(trifluoromethyl)phenyl tail and 1-alkyl/halogen-phenyl substituent, were synthesized. The experimental spectroscopic studies and theoretical calculation revealed that two ligands coordinate to Cu(II) in a bidentate fashion via thiocarbonyl S and deprotonated N atoms of thiourea moiety. Such monomers are characteristic of alkylphenylthiourea complexes, whereas the formation of a sandwich-type dimer is observed for halogeno derivatives. For the first time, the structural identifications of CuN2S2-based complexes usin

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18

Mistry, K. M., and K. R. Desai. "Synthesis of Novel Heterocyclic 4-Thiazolidinone Derivatives and their Antibacterial Activity." E-Journal of Chemistry 1, no. 4 (2004): 189–93. http://dx.doi.org/10.1155/2004/590439.

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4-Thiazolidinones have been prepared by the reaction of various substituted Schiff bases 3 with Thioglycolic acid and Thiolactic acid. The intermediate Schiff bases 3 were synthesized by the condensation of various substituted 2-amino benzothiazole 1 with 1-(4'-methyl Phenyl)-3-methyl-5-pyrazolone 2. The starting compound substituted 2-amino benzothiazoles were prepared from various substituted amines via substituted phenyl thiourea. The structures of the compounds have been confirmed by elemental analysis and spectral analysis. The antibacterial activity of the compounds has also been screene

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19

Alsawat, Mohammed, Abdel Majid A. Adam, Moamen S. Refat, Amnah Mohammed Alsuhaibani, and Mohamed Y. El-Sayed. "Structural, spectroscopic, and morphological characteriza-tions of metal-based complexes derived from the reaction of 1-phenyl-2-thiourea with Sr2+, Ba2+, Cr3+, and Fe3+ ions." Bulletin of the Chemical Society of Ethiopia 38, no. 6 (2024): 1803–14. http://dx.doi.org/10.4314/bcse.v38i6.23.

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The chemical reaction between 1-phenyl-2-thiourea as a ligand (termed PTU) with the metal ions Sr2+, Ba2+, Cr3+, and Fe3+ at a stoichiometry of 2:1 (PTU to metal ion) at 65 °C generated thermally stable metal-based complexes. The synthesized complexes were termed as Complex 1 (Sr2+), Complex 2 (Ba2+), Complex 3 (Cr3+), and Complex 4 (Fe3+). Elemental analyses, thermogravimetry (TG), Fourier-transform infrared (FT-IR) and ultraviolet/visible (UV-Visible) data suggested that the synthesized complexes can be formulated as [Sr(PTU)2(H2O)4]×Cl2 (Complex 1), [Ba(PTU)2(H2O)4]×Cl2 (Complex 2), [Cr(PTU

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20

Hajalsiddig, Tawassl Tajelsir Hassan, and Ahmed Elsadig Mohammed Saeed. "Synthesis of new 6-substituent 2-phenyl and 2-(furan-2-yl)-3-phenyl-quinoline-4-carboxylic acid derivatives." European Journal of Chemistry 10, no. 1 (2019): 57–63. http://dx.doi.org/10.5155/eurjchem.10.1.57-63.1816.

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A synthesis of substituted quinolines has been achieved by the Doebner reaction which is a three component coupling of arylaldehyde, p-amino-acetophenone and phenyl pyruvic acid. The products of 2,3-diary-6-acetyl-quinoline-4-carboxylic acids were obtained by Claisen Schmidt condensation reaction with aldehydes in the presence of sodium hydroxide in order to give the corresponding α,β-unsaturated carbonyls. The substituted α,β-unsaturated carbonyls were condensed with urea, thiourea, hydrazine, phenyl hydrazine, semicarbazide hydrochloride and ethanolamine to synthesized 2-pyrimidinone, 2-pyri

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21

Dhokale, Sandhya, Snehal Thakar, and Deepali Bansode. "Design and synthesis of novel 1-substituted -3-(4-oxo-2-phenylquinazolin-3(4H)-yl) urea and thiourea analogues targeting on TACE, as potent anticancer agents." GSC Biological and Pharmaceutical Sciences 12, no. 2 (2020): 194–205. https://doi.org/10.5281/zenodo.4268200.

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1-substituted phenyl quinazolinones analogues were designed by performing molecular modelling studies against tumour necrosis factor alpha converting enzyme (TACE PDB Id: 2A8H) and <em>in-silico </em>Lipinski properties for drug likeness.  From QSAR studies, it could be concluded that the urea and thiourea groups play a crucial role in enhancing cytotoxic effects of compounds. Substitution of halogens like trifluoromethyl, chloro and allylic functional group may enhance the cytotoxic effect of urea and thiourea analogues. Substitution of phenyl and benzoyl ring were not found ef

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22

Okuniewski, Andrzej, Damian Rosiak, Jarosław Chojnacki, and Barbara Becker. "Crystallographic study of self-organization in the solid state including quasi-aromatic pseudo-ring stacking interactions in 1-benzoyl-3-(3,4-dimethoxyphenyl)thiourea and 1-benzoyl-3-(2-hydroxypropyl)thiourea." Acta Crystallographica Section C Structural Chemistry 73, no. 1 (2017): 52–56. http://dx.doi.org/10.1107/s2053229616019495.

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1-Benzoylthioureas contain both carbonyl and thiocarbonyl functional groups and are of interest for their biological activity, metal coordination ability and involvement in hydrogen-bond formation. Two novel 1-benzoylthiourea derivatives, namely 1-benzoyl-3-(3,4-dimethoxyphenyl)thiourea, C16H16N2O3S, (I), and 1-benzoyl-3-(2-hydroxypropyl)thiourea, C11H14N2O2S, (II), have been synthesized and characterized. Compound (I) crystallizes in the space group P\overline{1}, while (II) crystallizes in the space group P21/c. In both structures, intramolecular N—H...O hydrogen bonding is present. The resu

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23

Akhter, K., K. Jahan, ME Halim, et al. "Synthesis of 1-phenyl-3, 4-dihydropyrimidine-2(1H)-ones derivatives under solvent free condition and their antimicrobial activity." Bangladesh Journal of Scientific and Industrial Research 54, no. 1 (2019): 47–54. http://dx.doi.org/10.3329/bjsir.v54i1.40730.

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We report herein the use of nickel nitrate hexahydrate [Ni(NO3)2.6H2O] as a new catalyst for the one-pot Biginelli like reaction coupling of 1-phenyl thiourea, ethyl acetoacetate and aromatic aldehydes to afford the corresponding 1-phenyl-3,4-dihydropyrimidin-2(1H)-thiones under solvent free condition to avoid the usage of hazardous organic solvents. The synthesized compounds were evaluated for their antimicrobial activity by KIRBY-BAUER disk diffusion method. Most of the compounds showed good to moderate antimicrobial activity. Bangladesh J. Sci. Ind. Res.54(1), 47-54, 2019

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24

Kim, Yong Hyun, Jong Il Park, Cheol hwan Myung, et al. "1-Phenyl-3-(2-thiazolyl)-2-thiourea inhibits melanogenesis via a dual-action mechanism." Archives of Dermatological Research 308, no. 7 (2016): 473–79. http://dx.doi.org/10.1007/s00403-016-1659-2.

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25

Tang, Fang, Xin Shen, and Xi-Wu Gao. "In Vitro Inhibition of the Diphenolase Activity of Tyrosinase by Insecticides and Allelochemicals in Micromelalopha troglodyta (Lepidoptera: Notodontidae)." Journal of Entomological Science 44, no. 2 (2009): 111–19. http://dx.doi.org/10.18474/0749-8004-44.2.111.

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Tyrosinase is a copper enzyme and plays a key role in normal insect development. We studied the in vitro inhibitory effects of selected insecticides and allelochemicals on the diphenolase activity of tyrosinase in Micromelalopha troglodyta (Graeser) (Lepidoptera: Notodontidae). Two pyrethriods (cyfluthrin and deltamethrin) and 3 other insecticides (hexaflumuron, abamectin and imidacloprid) were the least inhibitory, whereas 5 organophosphates (triazophos, malathion, chlorpyrifos, omethoate and profenofos), 1 carbamate (methomyl), 4 pyrethriods (fenpropathrin, beta-cypermethrin, bifenthrin and

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26

Pokhodylo, Nazariy, Roman Martyak, Mykola Тupychak, Khrystyna Pitkovych, Vasyl Matiychuk, and Mykola Obushak. "The (1H-Tetrazol-1-yl)arenediazonium Salts as Convenient Reagents for Quinones Arylation: Synthesis of 1,3-Benzoxathiol-2-ones and Naphtho[2,1-d][1,3]oxathiol-2-ones Bearing (1H-Tetrazol-1-yl)phenyl Motif." Chemistry & Chemical Technology 17, no. 2 (2023): 304–14. http://dx.doi.org/10.23939/chcht17.02.304.

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A convenient two-step method for the synthesis of novel 1,3-benzoxathiol-2-ones and naphtho[2,1-d][1,3]oxathiol-2-ones bearing (1H-tetrazol-1-yl)phenyl motif was developed. As a key step of the synthesis, an arylation of quinones (1,4-benzoquinone, 1,4-naphtho-quinones) with the (1H-tetrazol-1-yl)arenediazonium salts was studied and efficient protocols were elaborated to obtain a variety of substituted ((1H-tetrazol-1-yl)phenyl) benzo/naphtho-1,4-quinones in good to excellent yields. An alternative synthesis of ((1H-tetrazol-1-yl)phenyl) naphtho-1,4-quinones via Diels-Alder reaction of tetrazo

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27

R., PRASAD, та K. SRIVASTAVA P. "Synthesis of 1-Aryl-2-mercapto-4-phenyl-1 ,6-dihydro-1,3,5-triazine-6-thiones and their Addition Products with α,β-Unsaturated Carbonyl Compounds and Aryl Cyanamides as Antithyroidal Agen". Journal of Indian Chemical Society Vol. 69, Oct 1992 (1992): 664–66. https://doi.org/10.5281/zenodo.6020136.

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Department of Chemistry, Banaras _Hindu University, Varanasi-221 005 <em>Manuscript received 11 September 1991, revised 25 June 1992, accepted 3 July 1992</em>                                        Different 1-aryl-2-mercapto-4-phenyl-1,6-dihydro-1,3,5-triazine-6-thiones have been synthesised by the dealkylatien of 1-aryi2-benzylmercapto-4-phenyl-1, 6-dihydro-1, 3, 5-triazine-6-thione with thiourea and HCl. These mercapto triazine when treated with \(\propto\),β- unsaturated carbonyl

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28

Wanjari, A. K. "Synthesis and Antimicrobial activity of 1-(2-hydroxy-3,5- bis((3-imino-3H-1,2,4-dithiazol-5-yl)amino)phenyl)ethanone." International Journal of ChemTech Research 13, no. 3 (2020): 310–14. http://dx.doi.org/10.20902/ijctr.2019.130327.

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Heterocyclic compounds are used as a building block with a wide application in pharmaceutical industry, medicinal and drug research. This research paper explore the synthesis and antimicrobial activity of 1-(2-hydroxy-3,5-bis((3-imino-3H-1,2,4-dithiazol-5- yl)amino)phenyl) ethanone. The synthesis of 1-(2-hydroxy-3,5-bis((3-imino-3H-1,2,4- dithiazol-5-yl)amino)phenyl) ethanone carried out by using 4-chlorophenol as a starting material which is well knows as a active pharmaceutical ingredients. The synthesised compound tested for the gram positive and gram negative bacteria. The identification o

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29

Mayr, Florian, Lisa-Marie Mohr, Elsa Rodriguez, and Thorsten Bach. "Synthesis of Chiral Thiourea-Thioxanthone Hybrids." Synthesis 49, no. 23 (2017): 5238–50. http://dx.doi.org/10.1055/s-0036-1590931.

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Four different 1-aminocyclohexanes bearing a tethered thioxanthone group in the 2-position were prepared. The synthesis commenced with the respective N-protected β-amino acids, the carboxyl group of which was employed for the introduction of the thioxanthone moiety. After construction of the thioxanthone and protecting group removal, the conversion of the amino group into the respective thiourea was accomplished by treatment with N-3,5-bis(trifluoromethyl)phenyl isothiocyanate and yielded the title compounds in which the thioxanthone resides in different spatial positions relative to the thiou

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30

GUPTA, RAJUL, Neeraj Kumar FULORIA, and Shivkanya FULORIA. "SYNTHESIS AND ANTIMICROBIAL PROFILE OF SOME NEWER HETEROCYCLES BEARING THIAZOLE MOIETY." SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 20, no. 20 (2012): 61–67. http://dx.doi.org/10.48141/sbjchem.v20.n20.2012.64_revista_2012a.pdf.

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Various substituted acetophenones on treatment. with iodine and thiourea yielded 2-amino-4-( substituted-phenyl)-thiazole, which on further treatment with acetic anhydride generated N-(4-(substituted phenyl)thiazol-2-ylacetamide(1-5). All the synthesized compounds were characterized by their respective FTIR, 1H NMR, and mass data. Synthesized compounds (l, 2, 3, 4, 5) when subjected to investigation for their antimicrobial activities i.e. antibacterial and antifungal studies against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Candida albicans, Aspergillus flavus, and Asper

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El-Ghanam, Abdel Moneim. "New Route Synthesis of Styryl Pyrones: High Yield Synthesis, Reactions and Spectral Properties of 2-Phenyl-6-Styryl-4-Pyrones." Journal of Chemical Research 2005, no. 10 (2005): 654–56. http://dx.doi.org/10.3184/030823405774663101.

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2-Phenyl-6-styryl-4-pyrone derivatives have been synthesised from the reaction of ethyl phenylpropiolate with benzylideneacetone derivatives in the presence of sodium ethoxide. Treatment of styrylpyrone with phosphorus pentasulfide gave the corresponding styrylpyran-4-thione which on treatment with hydroxylamine hydrochloride and aqueous methylamine afforded the corresponding oxime and 1-methyl-2-phenyl-6-styrylpyridine-4(1H)-thione, respectively. On the other hand, styrylpyran-4-thione reacted with malononitrile to give pyrolylidenemalononitrile which on treatment with bidentate reagents, hyd

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32

P., M. Sonparote, and M. Chavhan D. "A Green Synthetic Approach For 1-(5-(2-Substituted Phenyl)Thiazol-2-Yl)-3-(4-Substituted Phenyl)Thiourea And Their Antimicrobial Evaluation." International Journal of Advance and Applied Research S6, no. 18 (2025): 653–58. https://doi.org/10.5281/zenodo.15260812.

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<em>A green synthetic approach for the preparation of </em><em>1-(5-(2-Substituted phenyl)thiazol-2-yl)-3-(4-substitutedphenyl)thiourea </em><em>derivatives </em><em>by using Citrullus colosynthis L. (Sherni) Fruits Juice</em><em> as </em><em>eco-friendly and chiefly available green catalyst </em><em>is presented. Further the antimicrobial activity of several synthesized compounds, was evaluated against selected microbes, including Staphylococcus aureus, Escherichia coli, Salmonella Typhi, and Pseudomonas aeruginosa, using the agar well diffusion assay method. The structures of the synthesized

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33

Pragnesh, B. Rana, A. Patel Jigisha, D. Mistry B., and R. Desai K. "Synthesis of various pharma based pyrido[2,3-d]pyrimidine as well as pyrido[1,2-a]pyrimidine and their antimicrobial activities." Journal of Indian Chemical Society Vol. 87, Mar 2010 (2010): 365–72. https://doi.org/10.5281/zenodo.5779153.

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Department of Chemistry, B. K. M. Science College, Valsad-396 001, Gujarat, India <em>E-mail :</em> bhavana_mistryll@yahoo.co.in <em>Manuscript received 27 October 2008, revised 2 April 2009, accepted 7 August 2009</em> 4-Amino-7-{ 4'-[(4" -methylplperazlnyl)dlazenyl)phenyi}-5-(snbstitutedphenyl)-1<em>H</em>-pyrldo[2,3-d]pyrimldine-2-one (4a-j), 4-amino-7-{4'-[(4"-methylpiperazinyl)diazenyl]phenyi}-5-(substitutedphenyl)-1H-pyrldo[2,3-d]pyrlmldhle-2-thlone (5a-j), 4-thioureido-7-{ if -[(4" -methylpiperazinyl)dlazenyl)phenyl}-5-(substitutedphenyl)-1<em>H</em>-pyrldo[2,3-d]

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34

Y., D. KULKARNI, RASHMI SHARMA (Miss), L. SHARMA V, and R. DUA P. "2-Substituted-5-chloro/nitrobenzophenones as Possible Anticonvulsants." Journal of Indian Chemical Society Vol. 64, Jan 1987 (1987): 46–48. https://doi.org/10.5281/zenodo.6196157.

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Department of Chemistry, Lucknow University, Lucknow.-226 007 Pharmacology Division, Central Drug Research Institute, Lucknow-226 001 <em>Manuscript received 8 July 1985, revised 22 May 1986, accepted 26 November 1986</em> Twenty one new 2-(<em>N</em><sup>1</sup>-substituted-phenylthiourea-<em>N<sup>2</sup></em> -y1)/(substituted-phenyl thiocarham ato)/[2-(substituted-phen)limino)thiazolid-4-one-3 yl]/[ (3-merca p to-4-su bstitutedphenyl-1, 2, 4(1)-triazol-5-yl)methylaminolmethyleneoxy]-5-chloro / nitrobenzophenones were synthesised and screened for their acute toxicit

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35

Ma, Peng-Fei, Xiao-Rui Zhang, Jiang-Wei Ma, Hui Chen, and Ru Jiang. "(RC,SFe)-1-[3,5-Bis(trifluoromethyl)phenyl]-3-{1-[2-(diphenylphosphanyl)ferrocenyl]ethyl}thiourea (unknown solvate)." Acta Crystallographica Section E Structure Reports Online 69, no. 5 (2013): m242—m243. http://dx.doi.org/10.1107/s1600536813008453.

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36

Murtaza, Shahzad, Muhammad Hamza, and M. Nawaz Tahir. "1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-aminium chloride–thiourea (1/1)." Acta Crystallographica Section E Structure Reports Online 67, no. 8 (2011): o2193. http://dx.doi.org/10.1107/s1600536811029989.

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37

Yugandhar, D., M. Sai Ganesh, and Dr N. Krishnarao. "One Pot Synthesis and antibacterial activity of 4-phenyl-2-thioxo-1, 2, 3, 4-Tetrahydropyrimidine-5-Carboxylate analogous catalysed by Mg (NO3)2 as Catalyst." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 03 (2025): 1–9. https://doi.org/10.55041/ijsrem43191.

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In the present study, the main focus for synthesis of to find a molecule bearing containing drug treatment means the drug which resists the antimicrobial activities scaffold due to microbial infection and study of the exploration of chemistry and medicinal diversity of pyrimidine-2-thiones. An efficient three component one pot synthesis of Methyl-6-methyl-4-phenyl -2-thioxo-1, 2, 3, 4-tetrahydro pyrimidineidin-5-yl) ethanone based on the reaction of readily available of starting molecules aromatic aldehyde, acetyl acetone and thiourea in presence followed by Mg (NO3)2 as a catalysed dehydratio

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38

Konrad, Nele, Darya Meniailava, Irina Osadchuk, et al. "Supramolecular chirogenesis in zinc porphyrins: Complexation with enantiopure thiourea derivatives, binding studies and chirality transfer mechanism." Journal of Porphyrins and Phthalocyanines 24, no. 05n07 (2020): 840–49. http://dx.doi.org/10.1142/s108842461950192x.

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Complexation of three (1[Formula: see text],2[Formula: see text]-2-aminocyclohexyl arylthioureas (aryl [Formula: see text] 3,5-bis(trifluoromethyl)phenyl; phenyl; 3,5-dimethylphenyl) as the guests to ZnTPP and ZnOEP hosts has been studied by means of UV-vis, CD spectroscopies and computational simulation. The complexation proceeds via coordination of the primary amino group to the zinc ion of the metalloporphyrin and induces a moderate circular dichroism signal in the Soret band of the porphyrins. The association constants increase with larger electron-withdrawing properties of the porphyrin h

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39

Su, Hongyan, Weiwei Huang, Zhongyue Yang, Hai Lin, and Huakuan Lin. "2-Hydroxy-naphth-1-aldehyde phenyl-thiosemicarbazone: effective thiourea-based sensor for acetate anion." Journal of Inclusion Phenomena and Macrocyclic Chemistry 72, no. 1-2 (2011): 221–25. http://dx.doi.org/10.1007/s10847-011-9969-7.

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40

Al-Romaizan, Abeer N. "Behavior of 3-hydrazino-6-aryl-1,2,4-triazin-5-one as a strong nucleophile towards active electrophilic compounds and their antibacterial evaluation." Mediterranean Journal of Chemistry 9, no. 3 (2019): 279–57. http://dx.doi.org/10.13171/mjc93191014920aar.

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The behavior of 3-hydrazino-6-aryl-1,2,4-triazin-5-one towards the active electrophilic compounds in polar and/ or non-polar solvents and various times and temperatures, has been studied. N-[2-(3-(3/5-(4-Nitrophenyl)-5/3-thioxo-1H-1,2,4-triazol-1-yl)-5-oxo-1,2,4-triazin-6-yl)phenyl]pivalamides were obtained from the reaction of N-(2-(3-hydrazineyl-5-oxo-1,2,4-triazin-6-yl)phenyl)-pivalamide with 4-nitrobenzoyl isothiocyanate in THF and/ or EtOH-piperidine respectively. Also, N-(2-(3-hydrazineyl-5-oxo-1,2,4-triazin-6-yl)phenyl)-pivalamide was shown a strong nucleophilic behavior by reaction wit

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41

Shingare, Ganesh, Dharnidhar Mundhe, Abjal Pathan, Varun Talathi, Balaji Madje, and Jaishree Chamargore. "Design and synthesis of some new 5-6-dihydropyrimidine-2(1H)-thione derivatives as antimicrobial agents." INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY 35, no. 01 (2025): 173. https://doi.org/10.59467/ijhc.2025.35.173.

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A series of some new 5-6-dihydropyrimidine-2(1H)-thione derivatives (4a-l) was synthesized by the reaction of E-1-(6-methoxynaphthalene-2-yl)-3-(substituted phenyl)prop-2-en-1-ones with thiourea. The synthesized compounds were evaluated for their antimicrobial screening and showed good to moderate activity. Compounds feathering methoxy group at para position 4c and methyl group at meta position showed potent antibacterial activity. A moderate antifungal activity for compound 4l having methyl group at para position is observed.. KEYWORDS :Antimicrobial resistance, Microorganism, Pyrimidine, Cha

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42

Dinh, Quy Huong, Tran Duong, and Nam Pham Cam. "A Study of 1-Benzyl-3-phenyl-2-thiourea as an Effective Steel Corrosion Inhibitor in 1.0 M HCl Solution." Journal of Chemistry 2021 (May 7, 2021): 1–14. http://dx.doi.org/10.1155/2021/5519411.

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1-Benzyl-3-phenyl-2-thiourea (BPTU) was studied as a steel corrosion inhibitor in 1.0 M HCl solution. Experimental methods were conducted including potentiodynamic polarization measurement (PPM), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM) analysis. Quantum calculations were performed at B3LYP/6-311G(d,p). Hexamethylenetetramine (URO) was selected for comparison with BPTU. The results showed that BPTU with the concentration of 2 × 10−4 M and at the temperature of 30°C could protect the steel surface with the highest inhibition efficiency of 94.99% and 9

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43

SUMEET, SINGHAL, CHANDAK PRITI, and P. MATHUR S. "Spectrophotometric Determination of Nickel(II) and Palladium(II) by Preliminary Adsorption of their 1-Phenyl-3-(2-thiazolyl)thiourea Complex on Polyurethane Foam." Journal of Indian Chemical Society Vol. 74, Sep 1997 (1997): 695–96. https://doi.org/10.5281/zenodo.5895627.

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Department of Applied Chemistry & Chemical Technology, Maharshi Dayanand Saraswati University, Ajrner-305 001 <em>Manuscript received 21 June 1996, revised 6 August /996, accepted 19 August 1996</em> A new spectrophotometric method for the determination of nickel(II) and palladium(II) after adsorption of their 1-phenyl-3-(2-thiazolyl)thiourea complex on polyurethane foam is discussed. The method has been applied to the determination of nickel(II) in hydrogenated oil and palladium(II) in synthetic samples.

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44

Al-Romaizan, Abeer N., Nesreen S. Ahmed, and Sherin M. Elfeky. "Design, Synthesis, and Biological Evaluation of Triazolyl- and Triazinyl-Quinazolinediones as Potential Antitumor Agents." Journal of Chemistry 2019 (February 3, 2019): 1–12. http://dx.doi.org/10.1155/2019/9104653.

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Novel 6(3-1H-1,2,4-triazol-1-yl)-3-phenylquinazoline-2,4(1H,3H)-diones (7a–e) were synthesized from different enaminones (6a–e) with 6-hydrazinyl-3-phenylquinazoline-2,4(1H,3H)-dione. 2,6(4-2-Substituted-1,3,5-triazin-1(2H)-yl)-3-phenylquinazoline-2,4(1H,3H)-diones (8a–k) were synthesized from the reaction of 1-(2,4-dioxo-3-phenyl-1,2,3,4-tetrahydroquinazolin-6-yl)thiourea, urea, or guanidine (3a–c) with enaminones (6a–e), and a series from 3-substituted-2-imino-1,3,5-triazin-1(2H)-yl-sulfonyl-phenyl-1-methylquinazoline-2,4(1H,3H)-dione (12a–j) were obtained from the reaction of N-(diaminometh

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45

Hafez, Hend N., Abdel-Rhman B. A. El-Gazzar, and Magdi E. A. Zaki. "Simple approach to thieno[3,2-d]pyrimidines as new scaffolds of antimicrobial activities." Acta Pharmaceutica 66, no. 3 (2016): 331–51. http://dx.doi.org/10.1515/acph-2016-0029.

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Abstract 6ʹ-(4-Chlorophenyl)-spiro[cyclohexane-1,2ʹ-thieno[3,2-d][1,3] oxazin]-4ʹ(1ʹH)-one (1) was synthesized and used as a starting material for the synthesis of a novel series of spiro compounds having biologically active sulfonamide 2a-e and 3ʹ-(4-acetylphenyl)-6ʹ- (4-chlorophenyl)-1ʹH-spiro[cyclohexane-1,2ʹ-thieno[3,2-d] pyrimidine-4ʹ(3ʹH)-one (3). Compound 2a was used as a key intermediate for the synthesis of sulfonyl carbothioamide derivatives 4a-c. Also, compound 3 was used as an intermediate for the synthesis of 3ʹH-spiro[cyclohexane-1,2ʹ-thieno[3,2-d]pyrimidin]-3ʹ-yl] phenyl}-2-imin

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46

BANDANA, DWIVEDI, TIWARI NIRUPAMA, and NIZAMUDDIN. "Synthesis of some 1-Aroyl-3-methyl-4-substituted phenyl-6-imino-4,7 -dihydro-1 ,3-thiazino[5,4-d]pyrazoles as Pesticides." Journal of Indian Chemical Society Vol. 68, Sep 1991 (1991): 515–16. https://doi.org/10.5281/zenodo.5970875.

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Department of Chemistry, University of Gorakhpur, Gorakhpur-273 009 <em>Manuscript received 24 January 1991, revised 9 August 1991, accepted 3 September 1991</em> 1-Aroyl-3-methyl-4-substituted-phenyl-6-imino-4,7-dihydro-1, 3-thiazino [5. 4-<em>d</em>]-pyrazoles (3) have been synthesised by the condensation of 1-aroyl-4-aryledino-3- methyl-5-pyrazolones (2) and thiourea in methanolic potassium hydroxide. The compounds have been screened for their fungicidal activities against<em> A. niger</em> and <em>A. flavus</em> and antibacterial activities against <em>S.</em> <em>aureus</em> and <em>B.</e

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47

Chavda, Mukesh M., Manoj F. Dhaduk, and Jatin M. Upadhyay. "Synthesis, characterization and biological study of some new substituted pyrazolo[3,4-d] thiazolo[3,2-a] pyrimidine derivatives." Current Chemistry Letters 12, no. 4 (2023): 831–38. http://dx.doi.org/10.5267/j.ccl.2023.3.010.

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Fused pyrimidines play an imperative role in our life due to their biological importance in the struggle of microorganisms. A series of 4-aryl-3-methyl-1-phenyl-1,4,6,7-tetrahydropyrazolo[3,4-d] thiazolo[3,2-a]pyrimidine (4a-j) were synthesized by cyclization of 3-methyl-1-phenyl-4-aryl-1,4,5,7-tetrahydro-6H-pyrazolo[3,4-d]pyrimidine-6-thiones (3a-j) with 1,2-dibromoethane in presence of anhydrous potassium carbonate. Earlier, compounds (3a-j) were synthesized by the condensation of 5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one (2), different substituted benzaldehyde and thiourea with catalyt

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48

Janovec, Ladislav, Stanislav Böhm, Ivan Danihel, Ján Imrich, Pavol Kristian, and Karel D. Klika. "Theoretical Confirmation of the Reaction Mechanism Leading to Regioselective Formation of Thiazolidin-4-one from Bromoacetic Acid Derivatives." Collection of Czechoslovak Chemical Communications 72, no. 10 (2007): 1435–45. http://dx.doi.org/10.1135/cccc20071435.

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A regioselective synthesis of 3-alkyl-2-[(anthracen-9-yl)imino]thiazolidin-4-ones 2a-2e and 2-(alkylimino)-3-(anthracen-9-yl)thiazolidin-4-ones 3a-3e from appropriate thioureas using methyl bromoacetate or bromoacetyl bromide, respectively, has been rationalized by DFT calculations of model thiourea and its phenyl derivative. The proposed mechanism indicates that the regioselective formation of the target thiazolidinones is a consequence of a different reactivity of the reagents and a varying stability of the intermediates, 1-alkyl-3-(anthracen-9-yl)-2-[(methoxycarbonyl)methyl]isothioureas 4a-

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49

Abbasi, Muhammad, Hussain Raza, Aziz Rehman, et al. "Synthesis, Antioxidant and In-Silico Studies of Potent Urease Inhibitors: N-(4-{[(4-Methoxyphenethyl)-(substituted)amino]sulfonyl}phenyl)acetamides." Drug Research 69, no. 02 (2018): 111–20. http://dx.doi.org/10.1055/a-0654-5074.

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AbstractIn this study, a new series of sulfonamides derivatives was synthesized and their inhibitory effects on DPPH and jack bean urease were evaluated. The in silico studies were also applied to ascertain the interactions of these molecules with active site of the enzyme. Synthesis was initiated by the nucleophilic substitution reaction of 2-(4-methoxyphenyl)-1-ethanamine (1) with 4-(acetylamino)benzenesulfonyl chloride (2) in aqueous sodium carbonate at pH 9. Precipitates collected were washed and dried to obtain the parent molecule, N-(4-{[(4-methoxyphenethyl)amino]sulfonyl}phenyl)acetamid

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50

S., Sheik Mansoor, and Ghashang M. "An appropriate one-pot synthesis of dihydropyrano[2,3-c]pyrazoles and 2-amino-3-cyano-7-hydroxy-4-substituted-4H-chromene derivatives using thiourea dioxide as an efficient and reusable organocatalyst." Journal Of Indian Chemical Society Vol. 92, Sep 2015 (2015): 1449–59. https://doi.org/10.5281/zenodo.5701932.

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Research Department of Chemistry, Bioactive Organic Molecule Synthetic Unit, C. Abdul Hakeem College, Melvisharam-632 509, Tamilnadu, India E-mail : smansoors2000@yahoo.co.in Faculty of Sciences, Najafabad Branch, Islamic Azad University, Najafabad, Esfahan, Iran Manuscript received online 13 November 2014, revised 02 February 2015, accepted 04 February 2015 Thiourea dioxide (<strong>TUD</strong>) was used as a recyclable organocatalyst for the synthesis of 6-amino-4-aryl-5-cyano-3-methyl-1-phenyl-1,4-dihydropyrano[2,3-c]pyrazoles and 2-amino-3-cyano-7-hydroxy-4-substituted-<em>4H</em>-chromen

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