A Facile Synthetic Route towards
Substituted Thieno[3,2-<i>e</i>]indoles
作者:Wim Dehaen、Wim Van Snick、Wienand Nulens、Sarah Jambon
DOI:10.1055/s-0028-1083366
日期:——
A number of substituted thieno[3,2-e]indoles have been prepared in high yields via a tetrabutylammonium fluoride mediated cyclization of 5-acetamido-4-ethynylbenzothiophenes, which, in turn, are easily accessible from the corresponding 4-iodobenzothiophenes. This method presents a viable alternative to the traditionally used Fischer indolization procedures. thienoindoles - palladium - cyclizations
已经通过四丁基铵氟化物介导的5-乙酰氨基-4-乙炔基苯并噻吩的环化反应以高收率制备了许多取代的噻吩并[3,2- e ]吲哚,这又可以容易地从相应的4-碘苯并噻吩获得。该方法提供了一种替代传统使用的费歇尔吲哚化方法的可行方法。 噻吩并吲哚-钯-环化-稠环系统-氟化四丁基铵