A chiral phosphine–olefin ligand derived from l-hydroxyproline and its use in the rhodium-catalyzed asymmetric 1,4-addition
Autor: | Tamio Hayashi, Yixin Lu, Vasudeva Rao Gandi |
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Rok vydání: | 2015 |
Předmět: | |
Zdroj: | Tetrahedron: Asymmetry. 26:679-682 |
ISSN: | 0957-4166 |
DOI: | 10.1016/j.tetasy.2015.05.004 |
Popis: | A new chiral phosphine–olefin ligand (S)-1 has been designed and synthesized from l-hydroxyproline via a short reaction sequence. It was examined for its efficiency in the rhodium-catalyzed asymmetric addition of arylboronic acids and a phenylzinc reagent to cyclic α,β-unsaturated ketones, giving 1,4-addition products with high enantioselectivities. |
Databáze: | OpenAIRE |
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