Fungicidal activity of phenyl N-(4-substituted-phenyl)thionocarbamates.
作者:Martha Albores-Velasco、John Thorne、Ralph L. Wain
DOI:10.1021/jf00056a054
日期:1995.8
Thirteen phenyl N-(4-substituted-phenyl)thionocarbamates [(4-X-C6H4)NHC(S)OC6H5] were synthesized, and their activities as spore germination inhibitors of Alternaria brassicicola, Botrytis cinerea, Septoria nodorum, and Uromyces viciae-fabae and as protectants against Puccinia recondita on wheat seedlings were determined. High fungicidal activity was found in thionocarbamates substituted with electron-withdrawing groups or the OH group. Results are discussed on the basis of the physicochemical properties of the thionocarbamates.
Synthesis of Isothiocyanates by Reaction of Amines with Phenyl Chlorothionoformate via One-Pot or Two-Step Process
working very well not only for alkyl and electron-rich aryl isothiocyanates, but also for highly electron-deficient aryl and heterocyclic isothiocyanates. A facile and efficient synthesis of isothiocyanatesfromamines is described. This method involves the reaction of amines with phenyl chlorothionoformate in the presence of solid sodium hydroxide by either a one-pot process or a two-step approach. The
Convenient Synthesis of Unsymmetrical N,N′-disubstituted Thioureas in Water
作者:Zhengyi Li、Yuan Chen、Yue Yin、Zhiming Wang、Xiaoqiang Sun
DOI:10.3184/174751916x14760947474916
日期:2016.11
and convenient two-step method has been developed and used to synthesise 25 (4 of which are novel) unsymmetrical N,N′-disubstituted thioureas in water. Alkylamines or variously substituted arylamines reacted smoothly with phenyl chlorothionoformate at room temperature to form thiocarbamates, which were then reacted with another alkyl- or arylamine in water at reflux to afford the unsymmetrical N,N′-disubstituted