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0000001407
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4 under identical conditions to furnish 5, albeit in much lower yield
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0011834907
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note
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15 According to a preliminary study, ethylaluminum dichloride proved to be equally effective in the cleavage of benzyl ethers of other endiols.
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33
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0023923325
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34
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0002727540
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17. An authentic sample of (Z)-6 was prepared by base-induced deacetonation of 2a (see also: Poss, A.J.;; Brodowski, M.H. Tetrahedron Lett. 1989, 2505-2508).
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Poss, A.J.1
Brodowski, M.H.2
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35
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37049093047
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However, this elimination did not proceed stereospecifically (for a closely related example, see: Eitelman, S.J.; Hall, R.H.; Jordan, A. J. Chem. Soc. Chem. Commun. 1976, 923-924).
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Eitelman, S.J.1
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0000989744
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39
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0000513361
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21. For a more detailed discussion of the NMR resonances of optically active 2,4-disubstituted dioxolanes, see: Willy, W.E., Binsch, G., Eliel, E.L. J. Amer. Chem. Soc. 1970, 92, 5394-5402.
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40
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85136538700
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note
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23 were transformed into a 1:1 mixture of diastereomers.
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41
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0001127065
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23. Ko, K-Y.; Frazee, W.J.; Eliel, E.L. Tetrahedron 1984, 40, 1333-1343.
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Eliel, E.L.3
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