Synthesis of Substituted 3-Cyano- and 3-(Arenesulfonyl)indoles from o-Nitrobenzyl Cyanides and Sulfones
作者:Krzysztof Wojciechowski、Zbigniew Wróbel
DOI:10.1055/s-0030-1289515
日期:2011.10
enamines, in the reaction of o-nitrophenylacetonitriles with Vilsmeier reagents, followed by reductive cyclization using Zn in acetic acid, leads to variously substituted 3-cyanoindoles, possessing aryl, alkyl, and aminoalkyl substituents at C-2. The method, when starting from the appropriate o-nitrobenzylsulfones, allows the synthesis of substituted 3-(arenesulfonyl)-indoles. indoles - amides - cyclization
在邻-
硝基苯基
乙腈与Vilsmeier试剂反应中形成烯胺,然后在
乙酸中使用Zn进行还原环化,生成各种取代的
3-氰基吲哚,在C-2处具有芳基,烷基和
氨基烷基取代基。当从合适的邻-硝基
苄基砜开始时,该方法允许合成取代的3-(
芳烃磺酰基)-
吲哚。
吲哚-酰胺-环化-腈-砜