Intramolecular Addition of a Dimethylamino C(sp3)–H Bond across C–C Triple Bonds Using IrCl(DTBM-SEGPHOS)(ethylene) Catalyst: Synthesis of Indoles from 2-Alkynyl-N-methylanilines

Autor: Kaito Yagi, Toshimichi Ohmura, Takeru Torigoe, Michinori Suginome
Rok vydání: 2021
Předmět:
Zdroj: Synthesis. 53:3057-3064
ISSN: 1437-210X
0039-7881
DOI: 10.1055/a-1511-1025
Popis: Intramolecular addition of a C(sp3)–H bond of the dimethylamino group across the C–C triple bond in 2-alkynyl-N,N-dimethylanilines is effectively catalyzed by a new iridium complex, IrCl(DTBM-SEGPHOS)(C2H4), in mesitylene at 150 °C. The intramolecular C(sp3)–H addition is followed by double-bond isomerization to afford 3-substituted indoles in good to high yields.
Databáze: OpenAIRE