Synthesis and reactivity of benzoxa(thia)zol-2-thiones: new route to 2-alkylthiobenzoxa(thia)zoles
作者:Abdallah Harizi、Anis Romdhane、Zine Mighri
DOI:10.1016/s0040-4039(00)00758-9
日期:2000.7
The reaction of aromatic primary amines 1 with carbon disulfide in the presence of a catalytic amount of triethylamine followed by treatment with aqueous hydrogen peroxide leads to the corresponding benzoxa(thia)zol-2-thiones 3a–c which can be transformed with iminoethers into 2-alkylthiobenzoxa(thia)zoles 5a–h in good yields (64–85%).
在催化量的三乙胺存在下,芳族伯胺1与二硫化碳的反应,然后用过氧化氢水溶液处理,生成相应的苯并氧杂(thia)zol-2-thiones 3a – c,可以用亚氨基醚转化为2 -烷硫基苯并[thia] zoles 5a – h的产率高(64–85%)。