Results 31 to 40 of about 75,161 (145)

5-(5-Bromo-2-hydroxy-3-methoxyphenyl)-7-methyl-4,5,6,7-tetrahydro[1,2,4]triazolo[1,5-a]pyrimidin-7-ol

Molbank, 2016
The title compound was synthesized by multicomponent condensation of 3-amino-1,2,4-triazole, acetone and 5-bromo-2-hydroxy-3-methoxybenzaldehyde. The structure was established by 1H-NMR, 13C-NMR, IR spectroscopy and LC-MS.
Michael Kondratiuk, Nikolay Yu. Gorobets, Yuriy V. Sedash, Mustafa K. Gümüş, Sergey M. Desenko   +4 more
doaj   +1 more source

Similarity analysis, synthesis, and bioassay of antibacterial cyclic peptidomimetics

Beilstein Journal of Organic Chemistry, 2012
The chemical similarity of antibacterial cyclic peptides and peptidomimetics was studied in order to identify new promising cyclic scaffolds. A large descriptor space coupled with cluster analysis was employed to digitize known antibacterial structures ...
Workalemahu M. Berhanu, Mohamed A. Ibrahim, Girinath G. Pillai, Alexander A. Oliferenko, Levan Khelashvili, Farukh Jabeen, Bushra Mirza, Farzana Latif Ansari, Ihsan ul-Haq, Said A. El-Feky, Alan R. Katritzky   +10 more
doaj   +1 more source

Nano ordered polyacrylonitrile-grafted chitosan as a robust biopolymeric catalyst for efficient synthesis of highly substituted pyrrole derivatives

Scientific Reports
A novel heterogeneous nanocatalyst was developed using chitosan, as a natural polysaccharide derived from crustacean shells, and its in-situ grafting by polyacrylonitrile to afford nano ordered polyacrylonitrile-modified chitosan (CS-g-PAN). The obtained
Mahsa Zohrehvand, Niloufar Nashibi, Mohammad G. Dekamin, Afshin Sarvary   +3 more
doaj   +1 more source

Crystal structures of ethyl {2-[4-(4-isopropylphenyl)thiazol-2-yl]phenyl}carbamate and ethyl {2-[4-(3-nitrophenyl)thiazol-2-yl]phenyl}carbamate

Acta Crystallographica Section E: Crystallographic Communications, 2016
The title compounds, C21H22N2O2S (I) and C18H15N3O4S (II), are structural analogs of the alkaloid Thiosporine B. Both molecules adopt a near-planar V-shaped conformation, which is consolidated by intramolecular N—H...N and C—H...O hydrogen bonds.
Elena V. Sukhonosova, Sergey A. Sokov, Gennady I. Ostapenko, Alexander S. Bunev, Pavel V. Dorovatovskii, Yan V. Zubavichus, Victor N. Khrustalev   +6 more
doaj   +1 more source

Green synthesis of highly functionalized heterocyclic bearing pyrazole moiety for cancer-targeted chemo/radioisotope therapy

BMC Chemistry, 2023
New derivatives of heterocyclic bearing pyrazole moiety were synthesized (eight new compounds from 2 to 9) via green synthesis methods (microwave-assisted and grinding techniques).
Kurls E. Anwer, Galal H. Sayed, Basma M. Essa, Adli A. Selim   +3 more
doaj   +1 more source

Bionanocomposite MIL-100(Fe)/Cellulose as a high-performance adsorbent for the adsorption of methylene blue

Scientific Reports
World production of dyes is estimated at more than 800,000 t·yr−1. The purpose of this research falls within the scope of the choice of an effective, local, and inexpensive adsorbent to remove dyes from wastewater.
Shahla Abbasi, Zahra Nezafat, Shahrzad Javanshir, Behzad Aghabarari   +3 more
doaj   +1 more source

Crystal structures of N-[(4-phenylthiazol-2-yl)carbamothioyl]benzamide and N-{[4-(4-bromophenyl)thiazol-2-yl]carbamothioyl}benzamide from synchrotron X-ray diffraction

Acta Crystallographica Section E: Crystallographic Communications, 2016
The title compounds, C17H13N3OS2, (I), and C17H12BrN3OS2, (II), are potential active pharmaceutical ingredients. Compound (I) comprises two almost planar fragments. The first is the central (carbamothioyl)amide (r.m.s.
Ekaterina S. Gantimurova, Alexander S. Bunev, Kristina Yu. Talina, Gennady I. Ostapenko, Pavel V. Dorovatovskii, Nikolai N. Lobanov, Victor N. Khrustalev   +6 more
doaj   +1 more source

Synthesis and Characterization of a Graphene Oxide Hydrogel Nanocomposite for Efficient Lithium Ion Adsorption from Aqueous Solutions

Chemistry Proceedings
In this study, a PVA/graphene oxide (GO) hydrogel nanocomposite was synthesized as a adsorbent for Li+ removal from aqueous solutions. The composite was characterized by FTIR, XRD, and SEM/EDS to verify interfacial interactions and porous morphology ...
Amir Ali Hadiyanjazi, Sepideh Hasanzadeh Banakar, Mohammad Ghorban Dekamin   +2 more
doaj   +1 more source

Direct Electrochemistry of Glucose Oxidase on a GrapheneGraphene Oxide Nanocomposite-Modified Electrode for a Glucose Biosensor

International Journal of Electrochemical Science, 2019
Direct electrochemistry of glucose oxidase (GOD) was conducted on the surface of a novel graphenegraphene oxide (GR-GO) nanocomposite. GR-GO possesses the virtues of excellent biocompatibility and conductivity, and high sensitivity to local perturbations,
Bo Wang, Xiaoli Wang, Zhifang He, Xiufeng Zhao, Linyu Wang   +4 more
doaj   +1 more source

Colorimetric pH-sensitive hydrogel film based on kappa-carrageenan containing quercetin or eucalyptus leaf extract for freshness monitoring of chicken meat

Food Chemistry: X
In this study, we created new pH-sensitive hydrogel films using κ-carrageenan (CG) and either quercetin (QUE) or eucalyptus leaf extract (ELE) to monitor the spoilage of chicken meat.
Akbar Mirzaei, Yashar Bina Jorshari, Shahrzad Jananshir, Milad Noori, Mohammad Mahdavi   +4 more
doaj   +1 more source