研究了1-(3-苯氧基-2-羟丙基)-3-苯基-2-硫脲(硫脲I)与乙酸铜的反应。铜离子在回流乙醇中进行脱硫反应,得到2-苯胺基-5-苯氧基甲基-2-恶唑啉。在室温下,硫脲 I 和乙酸铜生成铜络合物和恶唑啉。当配合物在乙醇中加热时,得到相同的恶唑啉和硫脲 I,以及无机铜化合物。在对配合物结构和配合物分解进行研究的基础上,探讨了铜配合物形成的反应机理。另一方面,1-(3-苯氧基丙基)-3-苯基-2-硫脲与乙酸铜在相同条件下反应得到1-(3-苯氧基丙基)-3-苯基-3-乙酰脲。
Cyclizations of Thioureas with a Hydroxy Group at the β-Position of the<i>N</i>-Substituent. II. Oxidation with Thionyl Chloride to Benzothiazoles
作者:Yoshio Iwakura、Keisuke Kurita
DOI:10.1246/bcsj.43.2535
日期:1970.8
The reaction of N′-alkyl and N-phenyl substituted thioureas with a hydroxyl group at the β-position of the N-substituent with thionylchloride gave benzothiazole derivatives by an oxidative cyclization reaction; no other products, such as thiazolines or oxazolines, were formed. The structure was confirmed by the various spectral and chemical data.