Asymmetric deactivation of racemic BINAP-Ru(II) catalysts through complete enantiomer discrimination by dimethylbinaphthylamine: Highly enantioselective hydrogenation of olefin and β-keto ester

Organic Letters

Volumn 4, Issue 10, 2002, Pages 1643-1645

  Mikami, Koichi ^a   Yusa, Yukinori ^a   Korenaga, Toshinobu ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

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ARTICLE;

EID: 0012847858     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol0256567     Document Type: Article

References (28)

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18. Amounts of chiral poisons: 2.0 equiv for A1 (ref 3c); 1.4 equiv for Rh (ref 4a); 20 equiv for Ru (ref 4b); 3.0 equiv for Ti (ref 4c); 2.0 equiv for Ir (ref 4d).
19. Reviews on kinetic resolutions: Kagan, H. B.; Fiaud, J. C. Top. Stereochem. 1988, 18, 249-330.
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24. 2,2′-Bis(di-3,5-xylylphosphino)-1,1′-binaphthyl: (a) Mashima, K.; Matsumura, Y.; Kusano, K.; Kumobayashi, H.; Sayo, N.; Hori, Y.; Ishizaki, T.; Akutagawa, S.; Takaya, H. J. Chem. Soc., Chem. Commun. 1991, 609-610.
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26. R of R-isomer, 18.7 min (0%).
27. 2(binap): (a) Noyori, R.; Ohkuma, T.; Kitamura, M.; Takaya, H.; Sayo, N.; Kumobayashi, H.; Akutagawa, S. J. Am. Chem. Soc. 1987, 109, 5856-5858.
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