Efficient synthesis of 2-ethoxycarbonyl indoles

…, H Jayadevappa, KM Mahadevan…

文献索引：Sudhakara; Jayadevappa; Mahadevan; Hulikal, Vijaykumar Synthetic Communications, 2009 , vol. 39, # 14 p. 2506 - 2515

全文：HTML全文

被引用次数: 21

摘要

Abstract An efficient one-pot procedure for the synthesis of 2-ethoxycarbonyl indoles from commercially available materials has been developed. The one-step procedure involves in situ formation of the hydrazones from phenylhydrazine hydrochloride and ethyl pyruvate in the presence of bismuth nitrate followed by Fischer cyclization in polyphosphoric acid and ethanol. This method is efficient and simple.