Cyclization of 2-alkynylanilines in the presence of NaAuCl(4)center dot H(2)O using [bmim]BF(4) as the reaction medium afforded 2substituted indoles in high yields. The catalyst system was best recycled using n-Bu(4)NAuCl4. 2,3-Disubstituted indoles could be prepared from 2-alkynylanilines and 3-buten-2-one through a one-flask annulation-alkylation sequence and 1,2,3 -trisubstituted indoles were obtained from the same starting materials via an aza-Michael addition-annulation-alkylation process.
Titolo: | Gold-Catalyzed Synthesis of 2-Substituted, 2,3-Disubstituted and 1,2,3-Trisubstituted Indoles in [bmim]BF4 |
Autori: | |
Data di pubblicazione: | 2007 |
Rivista: | |
Abstract: | Cyclization of 2-alkynylanilines in the presence of NaAuCl(4)center dot H(2)O using [bmim]BF(4) as the reaction medium afforded 2substituted indoles in high yields. The catalyst system was best recycled using n-Bu(4)NAuCl4. 2,3-Disubstituted indoles could be prepared from 2-alkynylanilines and 3-buten-2-one through a one-flask annulation-alkylation sequence and 1,2,3 -trisubstituted indoles were obtained from the same starting materials via an aza-Michael addition-annulation-alkylation process. |
Handle: | http://hdl.handle.net/11697/13493 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.