Rh(I)-Catalyzed Asymmetric Intramolecular Pauson-Khand Reaction in Aqueous Media

Autor: Sang Ick Lee, Won Hyuck Suh, Mira Choi, Young Keun Chung
Rok vydání: 2003
Předmět:
Zdroj: Synthesis. :2169-2172
ISSN: 1437-210X
0039-7881
DOI: 10.1055/s-2003-41044
Popis: The first rhodium-BINAP complex-catalyzed enantioselective Pauson-Khand reaction in aqueous media, which is accelerated by surfactant, is reported. The chiral rhodium catalyst is easily prepared in situ from I equivalent of [Rh(cod)Cl] 2 and 2 equivalents of BINAP under I atm of CO and a temperature of 60 °C or 90 °C. Ee's up to 96% were achieved for the intramolecular Pauson-Khand reaction, but the yields are highly dependent upon the substrate itself.
Databáze: OpenAIRE