1.
J Org Chem
; 82(11): 5669-5677, 2017 06 02.
Artigo
em Inglês
| MEDLINE
| ID: mdl-28472885
RESUMO
An efficient Cu(OTf)2-catalyzed Friedel-Crafts alkylation/cyclizaiton sequence of 3-substituted indoles with isatin-derived oxodienes was developed, and a series of structurally complex and diverse pyrrolo[1,2-a]indole spirooxindoles were first obtained in up to 99% yields. This protocol proved to be quite general and was also robust for the synthesis of 9H-pyrrolo[1,2-a]indoles.