Synthesis of Thiourea Derivatives and its Evaluation as Corrosion Inhibitor For Carbon Steel
摘要:
The inhibitory effect of thiourea-based compounds was evaluated using carbon steel body specimens in hydrochloric acid media. Thiourea derivatives, N-(pyrimidin-2-ylcarbamothioyl)benzamide and N-(6-methylpyridin-2-ylcarbamothioyl)benzamide, were synthesized using a simple route with good yields of approximately 70%. The inhibitory efficiencies were obtained by means of weight-loss experiments and electrochemical techniques (e.g., polarization curves and electrochemical impedance spectroscopy). The presence of a methyl functional group showed a better inhibitory efficiency compared with the derivate inhibitor without such modification. Analyzing Langmuir isotherms, G(ads)(0) values indicate the chemical adsorption of thiourea-based compounds. The E-Corr values obtained for the thiourea derivative with the methyl functionality was cathodically shifted by approximately -0.08V, with an inhibition efficiency of 81%.
2-Aminothiazoles with Improved Pharmacotherapeutic Properties for Treatment of Prion Disease
作者:Zhe Li、B. Michael Silber、Satish Rao、Joel R. Gever、Clifford Bryant、Alejandra Gallardo-Godoy、Elena Dolghih、Kartika Widjaja、Manuel Elepano、Matthew P. Jacobson、Stanley B. Prusiner、Adam R. Renslo
DOI:10.1002/cmdc.201300007
日期:2013.5
many desirable properties, including excellent stability in liver microsomes, oral bioavailability of ∼40 %, and high exposure in the brains of mice. Despite its good pharmacokinetic properties, compound 1 exhibited only modest potency in mouse neuroblastoma cells overexpressing the disease‐causing prion protein PrPSc. Accordingly, we sought to identify analogues of 1 with improved antiprion potency
Synthesis and spectroscopic properties of some new<i>N,N'</i>-disubstituted thiorueas of potential biological interest
作者:George Y. Sarkis、Essam D. Faisal
DOI:10.1002/jhet.5570220134
日期:1985.1
Thirty-six new N,N'-disubstituted thioureas have been synthesized by the reaction of phenyl-, p-fluorophenyl- and benzoylisothiocyanates with various substituted anilines, aminopyridines and 4-aminoquinolines. The uv, ir and nmr spectral data are presented and discussed.
New imidazoline/α2-adrenoceptors affecting compounds—4(5)-(2-aminoethyl)imidazoline (dihydrohistamine) derivatives. Synthesis and receptor affinity studies
作者:Adam P. Treder、Ryszard Andruszkiewicz、Włodzimierz Zgoda、Aleksandra Walkowiak、Celeste Ford、Alan L. Hudson
DOI:10.1016/j.bmc.2010.11.039
日期:2011.1
imidazoline/α2-adrenoceptor ligands, 4(5)-(2-aminoethyl)imidazoline derivatives. In this study the exploration of previously unknown 4(5)-(2-aminoethyl)imidazolines including the analogues of reported imidazoline and α2-aderenoceptors ligands: clonidine, rilmenidine, idazoxan, efaroxan, antazoline, tracizoline is described. The synthesis of a variety of novel 4(5)-(2-aminoethyl)imidazolines and their I1, I2
Synthesis and spectral characterization of some new<i>N</i>-substituted 2-aminobenzothiazoles, 2-aminothiazolopyridines and 2-aminothiazoloquinolines
作者:George Y. Sarkis、Essam D. Faisal
DOI:10.1002/jhet.5570220322
日期:1985.5
A series of N-substituted 2-aminobenzothiazoles, 2-aminothiazolopyridines, and 2-aminothiazoloquinolines were prepared by the cyclization of N,N'-disubstituted thiourea derivatives by bromine in acetic acid. The uv, ir and nmr data for these compounds are presented and discussed.
Neutral and cationic half-sandwich arene d<sup>6</sup>metal complexes containing pyridyl and pyrimidyl thiourea ligands with interesting bonding modes: Synthesis, structural and anti-cancer studies
作者:Sanjay Adhikari、Omar Hussain、Roger M. Phillips、Werner Kaminsky、Mohan Rao Kollipara
DOI:10.1002/aoc.4476
日期:2018.9
The reaction of [(p‐cymene)RuCl2]2 and [Cp*MCl2]2 (M = Rh/Ir) with benzoyl (2‐pyrimidyl) thiourea (L1) and benzoyl (4‐picolyl) thiourea (L2) led to the formation of cationic complexes bearing formula [(arene) M (L1)к2(N,S)Cl]+ and [(arene) M (L2)к2(N,S)Cl]+ [(arene) = p‐cymene, M = Ru, (1, 4); Cp*, M = Rh (2, 5) and Ir (3, 6)]. Precursor compounds reacted with benzoyl (6‐picolyl) thiourea (L3) affording