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[1b] I. Ojima (Ed.) Catalytic Asymmetric Synthesis, VCH: Weinheim, 1993.
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T. Hayashi in ref.[1b], p. 325-365.
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[4a] T. Hayashi in ref.[1b], p. 325-365.
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[4b] J. Sprinz, M. Kiefer, G. Helmchen, M. Reggelin, G. Huttner, O. Walter, L. Zsolnai, Tetrahedron Lett. 1994, 55, 1523-1526.
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33745398681
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[5a] R. A. Johnson, K. B. Sharpless, in ref.[1b], p. 227-272.
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12
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0141712450
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[5b] K. B. Sharpless, W. Amberg, Y. L. Bennani, G. A. Crispino, J. Hartung, K.-S. Jeong, H.-L. Kwong, K. Morikawa, Z.-M. Wang, D. Xu, X.-L. Zhang, J. Org. Chem. 1992, 57, 2768-2771.
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4444276636
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19
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33745393666
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E. N. Jacobsen in ref.[1b], p. 159-202.
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[11a] E. N. Jacobsen in ref.[1b], p. 159-202.
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20
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1542747689
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[11b] A. A. Macco, E. F. Godefroi, J. M. Drouen, J. Org. Chem. 1975, 40, 252-255.
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23
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33745365737
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1H-NMR analysis of the reaction mixtures. As could be expected, the acetais 15a/16a and 15b/16b were always formed in a ration of 1:1. The yields stated in Scheme 4 refer to isolated, analytically pure materials.
-
1H-NMR analysis of the reaction mixtures. As could be expected, the acetais 15a/16a and 15b/16b were always formed in a ration of 1:1. The yields stated in Scheme 4 refer to isolated, analytically pure materials.
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24
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0040128213
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[14a] Y. Allingham, R. C. Cookson, T. A. Crabb, S. Vary, Tetrahedron 1968, 24, 4625-4630.
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Vary, S.4
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26
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33745376908
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Strictly speaking, configuration of the stereocenters belonging to the oxazine ring. A reliable correlation with the configuration at C-4 of the dioxolane ring was not possible.
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Strictly speaking, configuration of the stereocenters belonging to the oxazine ring. A reliable correlation with the configuration at C-4 of the dioxolane ring was not possible.
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28
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84984085993
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H. H. Bosshard, R. Mory, M. Schmid, H. Zollinger, Helv. Chim. Acta 1959, 42, 1653-1658.
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