Reactions of 3-benzylindole-2-carbohydrazides: Synthesis of new 10-Benzyl-1,2-dihydro-1-oxo-1,2,4-triazino[4,5-<i>a</i>]indoles and 3-Benzyl-2-(1,3,4-oxadiazol-2-yl)indoles
作者:Shambabu Joseph Maddirala、Vidya S. Gokak、Linganagouda D. Basanagoudar
DOI:10.1002/jhet.5570410102
日期:2004.1
triethylorthoformate in a polar solvent like DMF yielded only 10-benzyl-1,2-dihydro-1-oxo-1,2,4-triazino[4,5-a]indoles (5) while (4) on reaction with triethylorthoacetate in DMF yielded both 10-benzyl-4-methyl-1,2-dihydro-1-oxo-1,2,4-triazino[4,5-a]indoles (5) and 3-benzyl-2-(5-methyl-1,3,4-oxadiazol-2-yl)indoles (6) instead of only the triazinoindoles as expected. The oxadiazolylindoles (6) were also synthesized
3-苄基吲哚-2-碳酰肼(4)与原甲酸三乙酯在极性溶剂(如DMF)中反应仅生成10-苄基-1,2-二氢-1-氧代-1,2,4-三嗪基[4,5- a ]吲哚(5)而(4)在DMF中与原乙酸三乙酯反应生成10-苄基-4-甲基-1,2-二氢-1-氧代-1,2,4-三嗪基[4,5- a ]吲哚( 5)和3-苄基-2-(5-甲基-1,3,4-恶二唑-2-基)吲哚(6)而不是仅预期的三嗪并吲哚。还通过与过量的原酸酯回流(4)来合成恶二唑基羟吲哚(6)。所形成的化合物的结构通过其分析和光谱数据表征。