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2005
Enantioselective syntheses
O 0031
Chiral Phosphinooxazolidine Ligands for Palladium- and Platinum-Catalyzed
Diels—Alder Reactions. — A number of chiral phosphinooxazolidine
08- 028 Asymmetric
complexes is prepared. Some of them are found to be effective catalysts for asymmetric
Diels—Alder reactions. The structure of the ligand as well as the nature of metal and
counterion play an important role. The most potent agent is derivative (Ia). —
(NAKANO*, H.; TAKAHASHI, K.; OKUYAMA, Y.; SENOO, C.; TSUGAWA, N.;
SUZUKI, Y.; FUJITA, R.; SASAKI, K.; KABUTO, C.; J. Org. Chem. 69 (2004) 21,
7092-7100; Tohoku Pharm. Univ., Tohoku, Sendai 981, Japan; Eng.) — Jannicke
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