Synthesis and biological activity of 1-substituted benzimidazoles and benzotriazoles
作者:R. S. Vartanyan、V. O. Martirosyan、É. V. Vlasenko、A. A. Ovasapyan
DOI:10.1007/bf00773095
日期:1982.8
sodium borohydride gave the substituted o-phenylenediamines (IVa-d). Reaction of the latter with nitrous acid, formamide or formic acid or mesityl oxide [3] or acetic acid gave the corresponding benzotriazoles (Va-d) andbenzimidazoles (Via-d) and (Vlla-d).
邻苯二胺与杂环 4-酮 (Ia-d) 缩合得到两种类型的化合物,即螺环 (IIa-d) 和席夫碱 (IIIa-d)。(IIa-d)或(IIIa-d)用硼氢化钠氢化得到取代的邻苯二胺(IVa-d)。后者与亚硝酸、甲酰胺或甲酸或异丙酮[3]或乙酸反应得到相应的苯并三唑(Va-d)和苯并咪唑(Via-d)和(VIIa-d)。