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Journal articles on the topic 'Chloro/Nitro-4H'

Author: Grafiati

Published: 18 May 2024

Last updated: 31 July 2025

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1

Safieh, Kayed A. Abu, Feda’a S. Al-Masri, Mikdad T. Ayoub, Mustafa M. El-Abadelah, and Wolfgang Voelter. "Synthesis of Some 1,3-Dimethyl-6-substituted-1H-pyrazolo[3,4-b]pyrazin-5(4H)-ones." Zeitschrift für Naturforschung B 66, no. 11 (2011): 1136–40. http://dx.doi.org/10.1515/znb-2011-1109.

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A series of new 6-substituted-1,3-dimethyl-1H-pyrazolo[3,4-b]pyrazin-5(4H)-ones (13a - e) and 1,3-dimethyl-5a,6a,7,8-tetrahydro-1H-pyrazolo[4,3-e]pyrrolo[1,2-a]pyrazin-5(4H)-one (15) have been synthesized. The synthetic strategy involves direct interaction of D,L-α-amino acids with 5- chloro-1,3-dimethyl-4-nitro-1H-pyrazole (10) to produce the respective N-(1,3-dimethyl-4-nitro-1Hpyrazol- 5-yl) D,L-α-amino acids 11a - e and 14. The latter compounds underwent reductive lactamization to deliver the corresponding target heterocyclic systems 13a - e and 15

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2

Ishikawa, Yoshinobu. "6-Chloro-8-nitro-4-oxo-4H-chromene-3-carbaldehyde." Acta Crystallographica Section E Structure Reports Online 70, no. 5 (2014): o547. http://dx.doi.org/10.1107/s1600536814007788.

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In the title compound, C10H4ClNO5, the non-H atoms of the 6-chlorochromone unit are coplanar (r.m.s. deviation = 0.017 Å) with the largest deviation from the mean plane [0.031 (2) Å] being found for the C=O C atom. The nitro group (NO2) is inclined to the chromone unit mean plane by 13.3 (2) °. The formyl group is also twisted with respect to the attached ring [C—C—C—O torsion angles = 10.8 (4) and −171.8 (2)°]. In the crystal, molecules are linked via C-H...O hydrogen bonds forming slab-like networks lying parallel to (-301). The slabs are linked by π–π interactions involving the benzene ring

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3

Amit, Chattree* and Neelottma Singh. "In-Silico Designing of 5-(3 Chloro-1-Benzothien-2yl)-4-Phenyl-4H-1,2,4 Triazole-3-Thiol derivatives and their Potential application on Fusarium Solani." Journal of Pharma Research 1, no. 2 (2012): 7–10. https://doi.org/10.5281/zenodo.1098653.

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<strong><em>ABSTRACT</em></strong> <em>In silico methods can help in identifying drug targets via bioinformatics tools. The use of computers and computational methods permeates all aspects of drug discovery and forms the core of structure-based drug design. High-performance computing, data management software and internet are facilitating the access of huge amount of data generated and transforming the massive complex biological data into workable knowledge in modern day drug discovery process. In the present work insilico designing of 5-(3 Chloro-1-benzothien-2yl)-4-phenyl-4H-1,2,4 triazole-3

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4

SG, Jawarkar, and Game MD. "Synthesis, Characterization and Antimicrobial Activity of Novel 2-Azetidinones Compounds." INTERNATIONAL JOURNAL OF PHARMACEUTICAL QUALITY ASSURANCE 15, no. 01 (2024): 242–48. http://dx.doi.org/10.25258/ijpqa.15.1.38.

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A series of 2-azetidinone derivatives were synthesized by the formation of triazole, followed by synthesis of Schiff’s bases by condensation of various substituted aldehydes. The Schiff’s bases further reacted to chloroacetyl chloride in the presence of triethyl amine, and undergoes cyclocondensation to give substituted 3-chloro-1-(3-mercapto-5-((5-methoxy-1H-indol-1-yl)methyl)-4H-1,2,4-triazol-4-yl)-4-phenylazetidin-2-one which on further reaction with ethyl chloroacetate, gives substituted ethyl 2-((4-(3-chloro-2-oxo-4-phenylazetidin-1-yl)-3-((5-methoxy-1H-indol-1-yl)methyl)-4,5-dihydro-1H-1

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5

SG, Jawarkar, and Game MD. "Synthesis, Characterization and Antimicrobial Evaluation of New Substituted Thiazolidinones Bearing Triazole Moiety." INTERNATIONAL JOURNAL OF PHARMACEUTICAL QUALITY ASSURANCE 15, no. 02 (2024): 796–802. http://dx.doi.org/10.25258/ijpqa.15.2.39.

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Series of thiazolidinone derivatives containing triazole moiety have been synthesized by condensing various substituted aldehydes to form Schiff bases which further reacts with thioglycolic acid undergoes ring condensation to form 3-(3-mercapto-5-((5-methoxy-1H-indol-1-yl)methyl)-4H-1,2,4-triazol-4-yl)-2-substituted phenylthiazolidin-4-one followed by reaction with ethyl chloroacetate to form ethyl 2-((4-(2-subtituted phenyl-4-oxothiazolidin-3-yl)-5-((5-methoxy-1H-indol-1-yl)methyl)-4H-1,2,4-triazol-3-yl)thio)acetate. The synthesized compounds were characterized by elemental analysis, fourier-

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6

M. Daoud, Khalid, Amal N. Ali, and Amina A. Ahmed. "Synthesis of 2-(3-chloro-4-nitro-1-benzothien-2-yl)-1,3,4-oxadiazole-1,3,4-thiadiazole and 5-(3-chloro-4-nitro-1-benzothien-2-yl)-4H-1,2,4-triazole-3-thiol." JOURNAL OF EDUCATION AND SCIENCE 23, no. 4 (2010): 19–26. http://dx.doi.org/10.33899/edusj.2010.59245.

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7

Ajermoun, N., A. loudiki, A. Farahi, et al. "Review—Sensor Evaluation for Thiamethoxam Detection in Different Matrices." Journal of The Electrochemical Society 168, no. 11 (2021): 116508. http://dx.doi.org/10.1149/1945-7111/ac38f5.

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Thiamethoxam (3-[(2-chloro-5-thiazolyl)methyl] tetrahydro-5-methyl-N-nitro-4H-1,3,5-oxadiazin-4- imine) is a representative compound of new neonicotinoid insecticides, which can selectively act on the central nervous system of insects and is widely used to control sucking insect pests. Due to its extensive usage, high water solubility, high leaching capability, low soil adsorption, and poor biodegradability, the residues of the thiamethoxam persist in the environment with adverse effects. Therefore, it is necessary to develop analytical tools for the monitoring of thiamethoxam. An electrochemi

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8

Raja, Rajamani, Subramani Kandhasamy, Paramasivam T. Perumal, and A. SubbiahPandi. "Crystal structure of 4-(6-chloro-4-oxo-4H-chromen-3-yl)-2-methylamino-3-nitro-4H,5H-pyrano[3,2-c]chromen-5-one chloroform monosolvate." Acta Crystallographica Section E Crystallographic Communications 71, no. 7 (2015): o512—o513. http://dx.doi.org/10.1107/s2056989015011810.

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In the title compound, C23H14Cl4N2O7, the pyran ring has an envelope conformation with the methine C atom as the flap. The chromene rings are almost planar (r.m.s. deviations of 0.027 and 0.018 Å) and their mean planes are inclined to one another by 85.61 (10)°. The mean planes of the pyran ring and the chromene ring fused to it are inclined to one another by 7.41 (13)°. The molecular structure is stabilized by an intramolecular N—H...O hydrogen bond, generating anS(6) ring motif. In the crystal, molecules are linked by pairs of N—H...O hydrogen bonds, forming inversion dimers with anR22(12) r

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9

Jyoti Thakur, Anup Kumar Chakraborty, Jaya Pandey, and Manoj Chincholkar. "Potential Utility Of 2-(2-(5-Nitro-1-H-Benzo[D]Thiazole-2-Yl) Vinyl)-4H-6-Chloro Chromene-4-One to Mitigate the Toxic Impact of Xenobiotics in Mammals." Journal of Advanced Zoology 44, S-5 (2023): 2507–16. http://dx.doi.org/10.17762/jaz.v44is-5.1934.

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This research aimed to investigate the individual and combined effects of two substances, 2-(2-(5-nitro-1-H-benzo[d]thiazole-2-yl) vinyl)-4H-6-Chloro Chromene-4-one referred as S1 and 2-(2-(5-nitro-1-H-benzo[d]thiazole-2-yl) vinyl)-4H Chromene-4-one referred as S2, on the survival of rats and the characteristics of total mRNA involved in molecular genetic processes in these animals. The study was conducted using Wistar Han (SPF) rats. S1, when administered at doses of 13 and 0.013 mg/kg body weight, which correspond to 1/100 and 1/100000 of the lethal dose (DL50), did not result in any clinica

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10

Srinivasulu, D., and C. Devendranath Reddy. "ChemInform Abstract: Synthesis and Antimicrobial Activity of 2-Substituted-6-chloro-8-nitro-4-trichloromethyl-4H-1,3,2-benzodioxaphos phorin 2-Oxides." ChemInform 32, no. 3 (2001): no. http://dx.doi.org/10.1002/chin.200103144.

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11

Anupam, Anupam, Mohammed Al-Bratty, Hassan Ahmad Alhazmi, et al. "Synthesis and biological evaluation of triphenyl-imidazoles as a new class of antimicrobial agents." European Journal of Chemistry 9, no. 4 (2018): 369–74. http://dx.doi.org/10.5155/eurjchem.9.4.369-374.1785.

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Newer triphenyl-imidazole derivatives (4a-h) were synthesized in good yields by the reaction of benzil and substituted benzaldehydes in equimolar quantities and refluxing the product with acetyl chloride thereafter. Structures were confirmed by using FT-IR, 1H NMR and 13C NMR spectroscopic methods. All the synthesized compounds were tested for their antimicrobial activity using agar diffusion technique against Gram positive (Staphhylococcus aureus and Bacillus subtilis), Gram negative (Escherichia coli and Pseudomonas aureginosa) as well as Fungal strain (Candida albicans). Interestingly compo

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12

Dauzonne, Daniel, Hubert Josien, and Pierre Demerseman. "(2-chloro-2-nitroethenyl)benzenes as synthons: a general method for the preparation of 2,3-dihydro- 2-nitro-3-phenyl-4H-furo [3,2-c] [1]benzopyran-4-ones and 3-phenyl-4H-furo[3,2-c][1]benzopyran-4-ones." Tetrahedron 46, no. 21 (1990): 7359–71. http://dx.doi.org/10.1016/s0040-4020(01)89053-0.

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13

DAUZONNE, D., H. JOSIEN, and P. DEMERSEMAN. "ChemInform Abstract: (2-Chloro-2-nitroethenyl)benzenes as Synthons: A General Method for the Preparation of 2,3-Dihydro-2-nitro-3-phenyl-4H-furo(3,2-c)(1) benzopyran-4-ones and 3-Phenyl-4H-furo(3,2-c)(1)benzopyran-4-ones." ChemInform 22, no. 7 (2010): no. http://dx.doi.org/10.1002/chin.199107147.

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14

Rathod, Ajay, Akhil Hadiya, Hadiyal Ashvin, and Suresh Dhakhda. "Synthesis and Antimicrobial Activities of Novel 1,2,4-Triazole Clubbed Pyrazole Derivatives." Research Journal of Chemistry and Environment, June 30, 2025, 74. https://doi.org/10.25303/298rjce074079.

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A new series of 2-((4-ethyl-5-phenyl-4H-1,2,4-triazol-3-yl)thio)-1-(3-(4-subphenyl)-5-(sub.phenyl)-4,5-dihy dro-1H-pyrazol-1-yl)ethan-1-one derivatives (6a-6j) have been synthesized from 4-ethyl-5-phenyl-4H-1,2,4-triazole-3-thiol and 2-chloro-1-(4,5-dihydro-5-(3-aryl)-3-arylpyrazol-1-yl)ethanone (5a-5j) in the presence of anhydrous K2CO3. All novel compounds (6a-6j) have been characterized by spectroscopy techniques such as 1HNMR, 13CMR, FTIR and LCMS. All newly synthesized derivatives were investigated for their antimicrobial activity against Gram-positive and Gram-negative bacterial strains

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15

Godhani, Dinesh R., Umang P. Mehta, Jignasu P. Mehta, and Anwar H. Saiyad. "Design, synthesis, and biological evaluation studies of novel thiophene substituted thiazolidinones scaffold as promising antimicrobial agents." Vietnam Journal of Chemistry, February 20, 2024. http://dx.doi.org/10.1002/vjch.202300116.

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AbstractGlobal public health is profoundly imperiled by antimicrobial resistance (AMR) and has made it extremely difficult to effectively control infectious diseases which are connected to it, so a new series of 5‐benzylidene‐2‐(thiophen‐2‐yl)‐3‐(4H‐1,2,4‐triazol‐4‐yl)thiazolidin‐4‐ones (5a–o) is synthesized. Spectral techniques have been utilized to characterize and confirm the structures of targeted molecules. The outcomes are to be compared with typical drugs given that compounds are examined against gram‐positive and gram‐negative strains of bacteria and fungus. Against bacterial strains,

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