An Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>/Schiff base/Cu(<scp>ii</scp>) complex as an efficient recyclable magnetic nanocatalyst for selective mono <i>N</i>-arylation of primary <i>O</i>-alkyl thiocarbamates and primary <i>O</i>-alkyl carbamates with aryl halides and arylboronic acids
the selective mono N-arylation of primary O-alkyl thiocarbamates and primary O-alkyl carbamates with aryl halides and arylboronic acids in the presence of a recyclable magnetic Cu(II) nanocatalyst is described. A variety of mono N-arylated O-alkyl thiocarbamates and O-alkyl carbamates were prepared in good to excellent yields with a broad range of aryl coupling partners. The magnetic nanocatalyst can
Green and efficient synthesis of thioureas, ureas, primary <i>O</i>-thiocarbamates, and carbamates in deep eutectic solvent/catalyst systems using thiourea and urea
developed for the direct preparation of various primary O-thiocarbamates/carbamates as well as monosubstituted thioureas/ureas by using thiourea/urea as biocompatible thiocarbonyl (carbonyl) sources. This procedure used choline chloride/tin(II) chloride [ChCl][SnCl2]2 with a dual role as a green catalyst and reaction medium to afford the desired products in moderate to excellent yields. Moreover, the DES can
通过使用硫脲/尿素作为生物相容性硫代羰基(羰基)源,开发了一种有效且通用的催化方法,用于直接制备各种伯O-硫代氨基甲酸酯/氨基甲酸酯以及单取代硫脲/脲。该过程使用氯化胆碱/氯化锡 ( II ) [ChCl][SnCl 2 ] 2,具有作为绿色催化剂和反应介质的双重作用,以中等至极好的收率提供所需产物。此外,DES 可以很容易地回收和重复使用七个循环,而其活性没有显着损失。此外,该方法在大规模合成所需产物方面表现出非常好的性能。
Kukushkin, Yu. N.; Trusova, K. M.; Sibirskaya, V. V., Russian Journal of Inorganic Chemistry, 1977, vol. 22, p. 1510 - 1512
作者:Kukushkin, Yu. N.、Trusova, K. M.、Sibirskaya, V. V.、Samuseva, V. N.
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日期:——
Holmberg, Svensk Kemisk Tidskrift, 1929, vol. 41, p. 254
作者:Holmberg
DOI:——
日期:——
Jensen,K.A. et al., Acta Chemica Scandinavica (1947), 1965, vol. 19, p. 438 - 442