Rh(I)-Catalyzed Asymmetric Intramolecular Pauson-Khand Reaction in Aqueous Media
Autor: | Sang Ick Lee, Won Hyuck Suh, Mira Choi, Young Keun Chung |
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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 |
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