Synthesis and properties of alkylthiomethylated urea derivatives
摘要:
Novel N,N'-bis[(alkylsulfanyl)methyl]ureas were prepared by three-component condensation of urea with formaldehyde and thiol in a NaOH solution, and alkylthiomethylated polymethyleneureas were prepared by the condensation of the same reactants in the presence of glacial acetic acid and without it. Polymethyleneureas efficiently sorb silver(I) from nitric acid solutions and palladium(II) from hydrochloric acid solutions. Alcoholsoluble N,N'-bis[(alkylsulfanyl)methyl]ureas inhibit carbon dioxide corrosion of St.3 steel.
Synthesis and properties of alkylthiomethylated urea derivatives
作者:L. A. Baeva、G. R. Anpilogova、M. A. Parfenova、R. M. Nugumanov、A. A. Fatykhov、N. K. Lyapina
DOI:10.1134/s1070427214020128
日期:2014.2
Novel N,N'-bis[(alkylsulfanyl)methyl]ureas were prepared by three-component condensation of urea with formaldehyde and thiol in a NaOH solution, and alkylthiomethylated polymethyleneureas were prepared by the condensation of the same reactants in the presence of glacial acetic acid and without it. Polymethyleneureas efficiently sorb silver(I) from nitric acid solutions and palladium(II) from hydrochloric acid solutions. Alcoholsoluble N,N'-bis[(alkylsulfanyl)methyl]ureas inhibit carbon dioxide corrosion of St.3 steel.
Multicomponent Synthesis of 1,3-Bis[(alkylsulfanyl)methyl]-1,3,5-triazinan-2-ones
作者:L. A. Baeva、L. F. Biktasheva、T. R. Nugumanov、A. A. Fatykhov
DOI:10.1134/s1070428021120071
日期:2021.12
been synthesized by three-component condensation of available N,N′-bis[(alkylsulfanyl)methyl]ureas with formaldehyde and primary amines in ethanol in the presence of sodium hydroxide or triethylamine. A one-pot four-component procedure has been proposed for the synthesis of the title compounds via successive thiomethylation of urea with a mixture of formaldehyde and alkanethiol and cycloaminomethylation
摘要 以前未知的 5-烷基-1,3-双[(烷基硫烷基)甲基]-1,3,5-三嗪烷-2-酮已通过现有N , N '-双[(烷基硫烷基)甲基的三组分缩合合成在氢氧化钠或三乙胺存在下,脲与甲醛和伯胺的乙醇溶液。已经提出了一种一锅四组分方法,用于通过脲与甲醛和烷硫醇的混合物的连续硫甲基化和中间体N,N'-双[(烷基硫烷基)甲基]脲与甲醛的环氨基甲基化和环氨基甲基化来合成标题化合物和烷基胺。