CYCLIC THIOUREAS
نویسندگان
چکیده
منابع مشابه
Hydrogen-Bonding Networks in Heterocyclic Thioureas
The synthesis of heterocyclic thioureas from heterocyclic amines with phenylor methylisothiocyanate or CS2 is described. Seven new X-ray crystal structures are reported: In N-(3-pyridyl)-N0-phenylthiourea (Pna21, a = 10.1453(3), b = 17.6183(5), c = 6.4787(2), V = 1158.02(6), Z = 4) hydrogen-bonding results in formation of a 3D network consisting of helices, which form channels parallel to the c...
متن کاملPulmonary toxicity of thioureas in the rat.
Administration of alpha-naphthylthiourea (ANTU) to rats causes damage to pulmonary endothelial cells and possibly mesothelial lining cells that together may account for the massive pleural effusion characteristic of thiourea toxicity. Using 35S-thiourea as a model compound, the extent of binding of 35S to lung proteins correlated well with the extent of edema, suggesting that the extent of bind...
متن کاملPyridyl thioureas as switchable anion receptors.
The binding selectivity of simple pyridyl thioureas in acetonitrile can be completely switched by protonation; hence the neutral thiourea binds acetate, but not chloride or bromide, whereas the protonated thiourea binds strongly to chloride or bromide, but is deprotonated by acetate.
متن کاملMechanochemical synthesis of thioureas, ureas and guanidines
In this review, the recent progress in the synthesis of ureas, thioureas and guanidines by solid-state mechanochemical ball milling is highlighted. While the literature is abundant on their preparation in conventional solution environment, it was not until the advent of solvent-free manual grinding using a mortar and pestle and automated ball milling that new synthetic opportunities have opened...
متن کاملA New Class of Glucosyl Thioureas: Synthesis and Larvicidal Activities.
A novel series of glucosyl thioureas were synthesized in good overall yields (up to 37% over four steps) from d-glucose and primary amines, and their larvicidal activities toward Mythimna separata Walker were also investigated. This new class of glucosyl thioureas demonstrated low to moderate growth inhibition activity of Mythiman separata Walker, with a growth inhibitory rate of up to 47.5% at...
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ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1954
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v54-010