LIST OF PUBLICATIONS 1-Mohamed Sharaf, Amr H. Moustafa, Rami J. Obaid, Abdullah Y.A. Alzahrani, Moustafa O. Aboelez, Hazem Elkady, Noof A. Alenazi, Mounir A.A. Mohamed, Jabir H. Al-Fahemi, Ziad Moussa, OMRAN A. OMRAN, Saleh A. Ahmed, Design, synthesis, molecular docking, ADMET studies, and biological activity evaluation of new 2-({[3-aryl-1,2,4-oxadiazol-5-yl)methyl]thio}-1H-benzimidazoles and 6-amino-6-aryl-5,6-dihydro[1,6,2,4]oxathiadiazocino[4,5-a]benzimidazol-3(2H)-ones, Journal of Molecular Structure, Volume 1295, 2, 2024,136708, 2-Aly ... إقراء المزيد

In the title molecular salt, C8H20N+C44H53O6S4, the conformation of the anionic tetrathiacalix[4]arene, which is cone-shaped, is primarily determined by intramolecular O—HO hydrogen bonds. There are also short intramolecular C— HO contacts present. The guest species do not sit within the bowl of the calixarene. One of the t-butyl groups in the anion is disordered over two sets of sites with ... إقراء المزيد

This work describes the fabrication and applications of potentiometric silver-selective sensors, based on the use of a newly synthesized p-tert-butylthiacalix[4]arene comprising two triazole rings, as a novel neutral ionophore in plasticized poly(vinyl chloride) (PVC) membranes. The effect of lipophilic anionic additives on the voltammetric responses of the sensors was investigated in details. The constructed sensors exhibited a Nernstian behavior with ... إقراء المزيد

In the title molecular salt, C8H20N+C42H48NO4S4, the conformation of the anionic tetrathiacalix[4]arene, which is cone-shaped, is primarily determined by intramolecular O—HO hydrogen bonds. There are also intramolecular C— HO short contacts present. In the crystal, the anions (A) and cations (C) are linked by C—HO and C—HS hydrogen bonds, forming –A–C–A–C– chains along [001]. The chains are linked via C—HNcyano ... إقراء المزيد

Phase transfer catalysis (PTC) technique for lower rim alkylation of p-tert-butylthiacalix[4]arene (TCA) with diethyl bromomalonate, phenacyl bromide, N,N-diethylchloroacetamide, ethyl bromoacetate and chloroacetonitrile using K2CO3, CsOH or Na2CO3 as a base and tetraethylammonium bromide (TEAB) as catalyst in benzene has been employed. Selective synthesis of monosubstituted p-tert-butylthiacalixarene using K2CO3 or CsOH as base has been elaborated. Unprecedented alkylation cyclization as well ... إقراء المزيد