Nucleophilic Addition of Hetaryllithium Compounds to 3-Nitro-1-(phenylsulfonyl)indole: Synthesis of Tetracyclic Thieno[3,2-c]-δ-carbolines
作者:Gordon W. Gribble、Philip E. Alford、Tara L. S. Kishbaugh
DOI:10.3987/com-09-s(s)99
日期:——
3-Nitro-1-(phenylsulfonyl)indole undergoes addition of aryl- and hetaryllithium nucleophiles to produce 2-substituted-3-nitroindoles. Mild reductive―acylation provides excellent access to 3-amido-2-hetarylindoles from which new thieno[3,2-c]-δ-carbolines are synthesized by cyclodehydration.
3-Nitro-1-(phenylsulfonyl)indole 经历芳基和杂芳基锂亲核试剂的加成以产生 2-取代的 3-nitroindoles。温和的还原-酰化为 3-amido-2-hetarylindoles 提供了良好的途径,通过环脱水合成新的噻吩并[3,2-c]-δ-咔啉。