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1
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77955693037
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note
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The word atropos consists of "a" meaning "not" and "tropos" meaning "turn" in Greek. Therefore, the chirally rigid or flexible nature of a ligand can be called atropos or tropos, respectively
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2
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0036403443
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K. Mikami, K. Aikawa, Y. Yusa, J.J. Jodry, and M. Yamanaka Synlett 2002 1561
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(2002)
Synlett
, pp. 1561
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Mikami, K.1
Aikawa, K.2
Yusa, Y.3
Jodry, J.J.4
Yamanaka, M.5
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3
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0003693382
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Also see: W. Kuhn K. Freudenberg, Stereochemie 1933 Franz Deuticke Leipzig 803 824
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Stereochemie
, pp. 803-824
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Kuhn, W.1
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4
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4244172207
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I. Ojima, VCH New York
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I. Ojima, Catalytic Asymmetric Synthesis Vol. I and II 1993 VCH New York 2000
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(1993)
Catalytic Asymmetric Synthesis
, vol.12
, pp. 2000
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8
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0003445429
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E.N. Jacobsen, A. Pfaltz, H. Yamamoto, Springer Berlin
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E.N. Jacobsen, A. Pfaltz, H. Yamamoto, Comprehensive Asymmetric Catalysis Vol. 13 1999 Springer Berlin
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(1999)
Comprehensive Asymmetric Catalysis
, vol.13
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10
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0034675555
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Review on Asymmetric Activation K. Mikami, M. Terada, T. Korenaga, Y. Matsumoto, M. Ueki, and R. Angelaud Angew. Chem. Int. Ed. 39 2000 3532
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Mikami, K.1
Terada, M.2
Korenaga, T.3
Matsumoto, Y.4
Ueki, M.5
Angelaud, R.6
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13
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0034616815
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C. Claver, E. Fernandez, A. Gillon, K. Heslop, D.J. Hyett, A. Martorell, A.G. Orpen, and P.G. Pringle Chem. Commun. 2000 961
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Claver, C.1
Fernandez, E.2
Gillon, A.3
Heslop, K.4
Hyett, D.J.5
Martorell, A.6
Orpen, A.G.7
Pringle, P.G.8
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16
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0034703724
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M. van den Berg, A.J. Minnaard, E.P. Schudde, J. van Esch, A.H.M. de Vries, J.G. de Vries, and B.L. Feringa J Am. Chem. Soc. 122 2000 11539
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J Am. Chem. Soc.
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Van Den Berg, M.1
Minnaard, A.J.2
Schudde, E.P.3
Van Esch, J.4
De Vries, A.H.M.5
De Vries, J.G.6
Feringa, B.L.7
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17
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0012824998
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D. Pea, A.J. Minnaard, A.H.M. de Varis, J.G. de Vries, and B.L. Feringa Org. Lett. 5 2003 475
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Pea, D.1
Minnaard, A.J.2
De Varis, A.H.M.3
De Vries, J.G.4
Feringa, B.L.5
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26
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6444231736
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N. Yokunaga, Y. Otomaru, K. Okamoto, K. Ueyama, R. Shintani, and T. Hayashi J. Am. Chem. Soc. 126 2004 13584
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Yokunaga, N.1
Otomaru, Y.2
Okamoto, K.3
Ueyama, K.4
Shintani, R.5
Hayashi, T.6
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27
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77955678219
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note
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Asymmetric catalysts are generally prepared from chiral ligands and central metals. The asymmetric catalysts thus prepared can be evolved into more activated catalysts with higher catalytic activity and enantioselectivity by chiral activators ("Asymmetric Activation", See ref. 2f g). However, the additional ligation does not necessarily lead to higher catalytic activity. We have thus proposed the term "asymmetric synergy (effect)" leading to the higher enantioselectivity without increase in the catalytic activity (even with decrease). For the asymmetric synergy (effect), see:
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29
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77955707802
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note
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All the calculations were performed with GAUSSIAN 03 program package. All the structures were optimized at B3LYP/631SDD (SDD for Rh, 6-31G(d) for others) level. The optimized geometries were verified as equilibrium structures having no imaginary frequency.
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30
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34247892462
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F. Giacomia, A. Meersma, L. Panella, L. Lefort, A.H.M. de Varis, and J.G. de Varis Angew. Chem. Int. Ed. 46 2007 1497
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Angew. Chem. Int. Ed.
, vol.46
, pp. 1497
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Giacomia, F.1
Meersma, A.2
Panella, L.3
Lefort, L.4
De Varis, A.H.M.5
De Varis, J.G.6
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33
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0037007934
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Y. Motoyama, Y. Koga, K. Kobayashi, K. Aoki, and H. Nishiyama Chem. Eur. J. 8 2002 2968
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(2002)
Chem. Eur. J.
, vol.8
, pp. 2968
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Motoyama, Y.1
Koga, Y.2
Kobayashi, K.3
Aoki, K.4
Nishiyama, H.5
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34
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77955701252
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note
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2NEt was needed in this Michael addition (see Table 1: entry 2).
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