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- Title
Air-Stable Carbonyl(pentamethylcyclopentadienyl)cobalt Diiodide Complex as a Precursor for Cationic (Pentamethylcyclopentadienyl)cobalt(III) Catalysis: Application for Directed C-2 Selective CH Amidation of Indoles.
- Authors
Sun, Bo; Yoshino, Tatsuhiko; Matsunaga, Shigeki; Kanai, Motomu
- Abstract
The readily available carbonyl(pentamethylcyclopentadienyl)cobalt diiodide complex [Cp*Co(CO)I2] was successfully utilized as the precursor of a cationic cobalt(III) active catalyst for directed CH bond functionalization. The complex Cp*Co(CO)I2 (2.5-1.25 mol%), in combination with silver hexafluoroantimonate (AgSbF6) and potassium acetate (KOAc), efficiently catalyzed the directed C-2 selective amidation of indoles with sulfonyl azides, and the corresponding products were obtained in 85-98 % yield.
- Subjects
COBALT; AMIDATION; CARBON-hydrogen bonds; INDOLE compounds; CATALYSIS
- Publication
Advanced Synthesis & Catalysis, 2014, Vol 356, Issue 7, p1491
- ISSN
1615-4150
- Publication type
Article
- DOI
10.1002/adsc.201301110