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Asymmetric acylation
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i) "Asymmetric Acylation": E. R. Jarvo, S. J. Miller in Comprehensive Asymmetric Catalysis, Supplement 1 (Eds. : E. N. Jacobsen, A. Pfaltz, H. Yamamoto), Springer, Berlin, 2004, Chapter 43;
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h) H. Zhou, Q. Xu, P. Chen, Tetrahedron 2008, 64, 6494;
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32
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73949102462
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1H NMR integration of the crude reaction mixture.
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1H NMR integration of the crude reaction mixture.
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33
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73949093834
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A similar solvent effect was observed in the present study for the reaction of racemic benzyl lactate ((±)-1) with propionic anhydride as shown below. Chemical equation presented
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A similar solvent effect was observed in the present study for the reaction of racemic benzyl lactate ((±)-1) with propionic anhydride as shown below. Chemical equation presented
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34
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54249095628
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X. Li, P. Liu, K. N. Houk, V. B. Birman, J. Am. Chem. Soc. 2008, 130, 13836.
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Li, X.1
Liu, P.2
Houk, K.N.3
Birman, V.B.4
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35
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73949093195
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All calculations were performed with the program package Spartan '08 1.1.1 of Wavefunction Inc.
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All calculations were performed with the program package Spartan '08 1.1.1 of Wavefunction Inc. (http://www.wavefun.com).
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36
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73949086853
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Cartesian coordinates and absolute energies for all reported structures are included in the Supporting Information.
-
Cartesian coordinates and absolute energies for all reported structures are included in the Supporting Information.
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-
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37
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73949106364
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-1). Cartesian coordinates of the second stable transition state (S)-8-ts-2 to afford (S)-9 are described in the Supporting Information.
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-1). Cartesian coordinates of the second stable transition state (S)-8-ts-2 to afford (S)-9 are described in the Supporting Information.
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