Benzoic acid and o-phenylenediamine efficiently reacted under the green solvent-free Ball Milling method. Several reaction parameters were investigated such as rotation frequency; milling balls weight and milling time. The optimum reaction condition was milling with 56.6 g weight of balls at 20 Hz frequency for one hour milling time. The study was extended for synthesis of a series of benzimida...

In the title compound, C(14)H(9)Cl(2)N(3)O(3)S·C(3)H(7)NO, the two aromatic rings enclose a dihedral angle of 32.93 (12)°. The thiourea mol-ecule exists in its thione form in the solid state with typical C=S and C-N bond lengths. In the crystal, N-H⋯O hydrogen bonds exist between the thio-urea and carbonyl groups on the same and neighboring mol-ecules. In addition, each dimethyl-formamide solva...

The title compound, C(13)H(11)N(3)O(2)S, was prepared by reaction of 2-nitro-benzenamine, KOH and 1-isothio-cyanato-benzene in an ethanol solution at room temperature. The dihedral angles formed between the thiourea plane and the phenyl rings are 61.9 and 31.0°. The dihedral angle between the two phenyl rings is 78.1°. In the crystal structure, there are weak inter-molecular N-H⋯S and C-H⋯S hyd...

To obtain a rapid, efficient and mild synthesis of 5,5-diphenylhydantoin and 5,5-diphenyl-2-thiohydantoin derivatives, ultrasonic irradiation has been applied to the reaction mixtures containing substituted benzils and urea or thiourea derivatives catalyzed by KOH in DMSO/H(2)O, which allowed us to achieve products at room temperature in a good yield and short time without any side product. Thi...

In the title compound, C(14)H(12)ClN(3)OS, the short exocyclic N-C bond lengths indicate resonance in the thiourea part of the mol-ecule. The title compound is stabilized by an intra-molecular N-H⋯N hydrogen bond, which results in the formation of a six-membered ring. In addition, it shows a synperiplanar conformation between the thio-carbonyl group and the pyridine group. Inter-molecular N-H⋯S...

however, the conventional gold recovery process is cyanidation, due to the recent environmental laws; researchers are looking for alternative methods for the recovery of gold. furthermore, the copper anode slime is one of the most important secondary sources of gold (about 1200 ppm). so, the main objective of the current work is gold separation from copper anode slime as a rich secondary source...

Propachlor and other chloroacetanilide herbicides are frequently detected contaminants of groundwater and surface water in agricultural regions. The purpose of this work was to develop a new approach to remove propachlor residues from the environment via chemical remediation by the nitrification inhibitor thiourea. The transformation processes of propachlor and thiourea mixed in aqueous solutio...

As a fundamental step towards creating a new class of cellulose engineering materials, the proposed research investigated swelling and dissolution of cellulose in NaOH aqueous solvent systems (NaOH/H2O, NaOH/thiourea/H2O and NaOH/thiourea/urea/H2O). The dependence of swelling and dissolution behavior of cellulose fibers on the quality of the solvent was investigated in detail. For the two cellu...

Thiourea single crystals have been grown from aqueous solution by slow cooling technique. The stability of the saturated solutions of different pH values has been assessed by measuring the metastable zone width (MSZW) by a nucleation method. MSZW has been enhanced by the influence of pH of thiourea solution. The growth rate of the thiourea crystal along the c-direction [001] was found faster fo...

background and objective: regarding the prevalence of epilepsy in human society and with respect to insufficiency of usual treatments, new strategies and methods for medical treatment of epileptic patients are necessary. as nmda receptor antagonists are the most prominent anti-epileptic drugs, in the present study, we synthesized and investigated anti-epileptic effect of a new piperidine deriva...