Application

No.108
Highly Enantioselective Hydrogenation Reactions
B2089 (S,S)-1,2-Bis[boranato(tert-butyl)-
methylphosphino]ethane (1)
100mg
B2090 [(S,S)-1,2-Bis[(tert-butyl)-
methylphosphino]ethane]-
(norbornadiene)rhodium(I)
Tetrafluoroborate (2)
50mg
B2091 (Norbornadiene)rhodium(I)
Tetrafluoroborate (3)
100mg

References

1) Synthesis of new optically active phosphine ligands and their use in catalytic asymmetric reactions
T. Imamoto, Yuki Gosei Kagaku Kyokaishi (J. Synth. Org. Chem. Jpn.), 56, 511 (1998).
2) P-Chiral bis(trialkylphosphine) ligands and their use in highly enantioselective hydrogenationreactions
T. Imamoto, J. Watanabe, Y. Wada, H. Masuda, H. Yamada, H. Tsuruta, S. Matsukawa,K. Yamaguchi, J. Am. Chem. Soc., 120, 1635 (1998).
3) Mechanism of asymmetric hydrogenation catalyzed by a rhodium complex of (S,S)-1,2-bis(tert-butylmethylphosphino)ethane. Dihydride mechanism of asymmetrichydrogenation
I. D. Gridnev, N. Higashi, K. Asakura, T. Imamoto, J. Am. Chem. Soc., 122, 7183 (2000).
4) Enantioselective hydrogenation of β-keto esters catalyzed by P-chiral bis(dialkyl-phosphino)ethanes-Ru(II)
T. Yamano, N. Taya, M. Kawada, T. Huang, T. Imamoto, Tetrahedron Lett., 40, 2577 (1999).
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