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Panshina S. Yu. Bakibaev A. A. Malkov V. S. Belykh S. I. Zhumanov K. B. Gorbin S. I. Ponarin N. V. Kotelnikov O. A. 《Russian Journal of General Chemistry》2021,91(3):379-382
Russian Journal of General Chemistry - The reaction of urea with 1-hydroxyethylidene diphosphonic acid in the ratios of 1 : 1, 1 : 2, 1 : 3 was first studied. As a result of the reactions, the... 相似文献
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Tomsk Polytechnical University, Tomsk. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp 1696–1697, December, 1995. Original article submitted November 12, 1995. 相似文献
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For the first time, derivatives of 1,2,4-thiadiazoles have been obtained by the reaction of [bis(acyloxy)iodo]arenes with 1-monosubstituted thioureas. 1-Acetylthiourea is subject to intermolecular azacyclization to form 3,5-bis-(acetylamino)-1,2,4-thiadiazole in reaction with [bis(acyloxy)iodo]benzene. 1-Phenylthiourea forms 3,5-bis-(phenylamino)-1,2,4-thiadiazole in a single-stage reaction with (diacetoxyiodo)benzene. The reaction of 1-phenylthiourea with [bis(trifluoroacetoxy)iodo]benzene leads to the formation of 5-imino-4-phenyl-3-phenylamino-4H-1,2,4-thiadiazoline. 相似文献
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L. K. Sal’keeva E. K. Taishibekova A. A. Bakibaev E. V. Minaeva B. K. Makin L. M. Sugralina A. K. Sal’keeva 《Russian Journal of General Chemistry》2017,87(3):442-446
The N-acylation of glycoluril with 1-haloacetyl halides was studied. The optimal conditions and reaction regioselectivity, as well as the effect of reagent molar ratios, base nature, temperature, and reaction time on the yield of the target product were established. It was shown that the chemical modification of the synthesized bis(bromoacetyl) derivative of glycoluril by phosphorylation by the classical Arbuzov reaction gave a previously unknown bis(diethylphosphonoacetyl) derivative of glycoluril. The consecutive silylation and hydrolysis of the latter derivative gave the corresponding bis(phosphonoacetyl) derivative which presents interest as a potentially biologically active compound. 相似文献
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Panshina S. Yu. Ponomarenko O. V. Bakibaev A. A. Malkov V. S. 《Russian Journal of Organic Chemistry》2020,56(12):2067-2073
Russian Journal of Organic Chemistry - A new method has been developed for the synthesis of 2,4,6,8-tetramethyl-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione in 62% yield using etidronic acid... 相似文献