XLIX.—Isomerism amongst the substituted thioureas
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Ultrasound promoted synthesis of bis(substituted pyrazol-4-ylcarbonyl)-substituted thioureas.
A series of novel bis(substituted pyrazol-4-ylcarbonyl)-substituted thioureas have been synthesized by the reactions of substituted pyrazol-4-ylcarbonyl isothiocyanates with different diamines under ultrasound irradiation and classical heating method at 20-25 degrees C. In general, substantial improvement in rates and modest yields increases were observed when reactions were carried out under s...
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The effects of 14
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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...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1892
ISSN: 0368-1645
DOI: 10.1039/ct8926100536