A concise route to iboga-analogues via the formation of suitably substituted-2-indoles
作者:Goutam Kumar Jana、Surajit Sinha
DOI:10.1016/j.tetlet.2010.02.028
日期:2010.4
A concise route to iboga-analogues has been developed. Important steps include a Pd-catalyzed Sonogashira coupling of Boc-2-idodaniline with terminal alkynes and the formation of 2-substitutedindoles in the presence of tetrabutylammonium fluoride to give the key intermediate, dehydroisoquinuclidine-containing indole. The final step cyclization between indole-3-position and dehydroisoquinuclidine ring