1.
Chemistry
; 24(19): 4835-4840, 2018 Apr 03.
Artigo
em Inglês
| MEDLINE
| ID: mdl-29390167
RESUMO
A novel and efficient catalytic approach to functionalized furo[3,4-b]indol-1-ones is reported. It is based on a palladium-catalyzed sequential process involving an initial cyclization of 2-(hydroxypropyn-1-yl)anilines to form the indole moiety, followed by insertion of carbon monoxide and a second annulation step to build a lactone ring. In a single transformation, two fused heterocycles and three new bonds (C-N, C-C and C-O) are generated. The present methodology gives direct access to structurally complex molecules starting from readily available reagents.