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Palladium (II) complex of Pyridine-Oxazoline-type ligand as a homogeneouns/heterogeneous catalyst for enantioselective addition of arylboronic acids to cyclic ketimines
Rok: 2022
Druh publikace: ostatní - přednáška nebo poster
Strana od-do: nestránkováno
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Jazyk Název Abstrakt Klíčová slova
eng Palladium (II) complex of Pyridine-Oxazoline-type ligand as a homogeneouns/heterogeneous catalyst for enantioselective addition of arylboronic acids to cyclic ketimines The use of palladium catalyst for an asymmetric addition of arylboronic acids to cyclic ketimines was for the first time reported by Zhang. 1 In this work we present the Pd(TFA)2 complex with (S)-4-(tert-butyl)-2-(5-(trifluoromethyl)pyridin-2-yl)-4,5-dihydrooxazole as a new one catalyst for an enantioselective addition of arylboronic acids to cyclic ketimines, which provides excellent results in homogeneous reaction conditions. Such ligand was designed and prepared with various spacers, which allow immobilization on solid carriers. The advantage of our immobilization strategy is a cheap and commercially available starting compound, which can be elegantly immobilized in three reaction steps. Palladium catalyst; arylboronic acids; cyclic ketimines; enantioselective addition

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