N-aryl-N′-2-thiazolylureas is reported. With cheap and recyclable nonmetal selenium instead of noble metals as the catalyst, carbon monoxide instead of virulent phosgene as the carbonylation agent, the selenium-catalyzed carbonylation reaction of 2-aminothiazole can proceed smoothly in one-pot manner with a variety of nitro aromatics in the presence of triethylamine to afford the desired N-aryl-N′-2-thiazolylureas
Metal-Free Synthesis of Unsymmetrical Ureas and Carbamates from CO<sub>2</sub> and Amines via Isocyanate Intermediates
作者:Yiming Ren、Sophie A. L. Rousseaux
DOI:10.1021/acs.joc.7b02905
日期:2018.1.19
A mild and metal-free synthesis of aryl isocyanates from arylamines under an atmosphere of CO2 was developed. The carbamic acid intermediate, derived from the arylamine starting material and CO2 in the presence of DBU, is dehydrated by activated sulfonium reagents to generate the corresponding isocyanate. The latter can be detected by in situ IR and trapped by various amines and alcohols to make unsymmetrical
VRBANOVA, S.;NIKOLOV, X., NAUCH. TR. VISSH IN-T ZOOTEXN. I BET. MED. VETERINARNOMED. FAK. CTAPA ZAG+
作者:VRBANOVA, S.、NIKOLOV, X.
DOI:——
日期:——
Structure-Based Design, Synthesis and Molecular Modeling Studies of Thiazolyl Urea Derivatives as Novel Anti-Parkinsonian Agents
作者:Faizul Azam、Medapati Vijaya Vara Prasad、Neelaveni Thangavel、Anil Kumar Shrivastava、Govind Mohan
DOI:10.2174/1573406411208061057
日期:2012.9.1
compounds with adenosine A(2A) receptor exhibited very good binding interactions and warrants further studies to confirm their binding with human A(2A) receptor for the design and development of potent antagonists. Parameters for Lipinski's rule of 5 were calculated computationally because pharmacokinetic and metabolic behaviors in the body often are linked to the physical properties of a compound. None