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21244484332
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note
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Details are shown in the Experimental Section (Supporting Information).
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32
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21244450768
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note
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4 was better for the flow system. Although the precise reason is not clear at this stage, the rate difference of the absorption of water may explain the results.
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34
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21244452821
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note
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After the column, the solution was passed through a short silica gel pad to afford the almost pure aldehyde (>98%). See Experimental Section (Supporting Information).
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35
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21244439559
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note
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We did not continue the flow system experiment after 8.40 h due to an experimental reason.
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36
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33748733929
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While polymer-supported perruthenate was used for oxidation of alcohols in a batch system, its catalytic activity was lower than that of PI-Ru. See: (a) Hinzen, B.; Ley, S. V. J. Chem. Soc., Perkin Trans. 1 1997, 1907.
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0242573151
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See also ref 3
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On the other hand, stoichiometric use of an immobilized co-oxidant for oxidation of alcohols in both batch and flow systems was reported. (b) Brünjes, M.; Sourkouni-Argirusi, G.; Kirschning, A. Adv. Synth. Catal. 2003, 345, 635. See also ref 3.
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38
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21244466012
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note
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Greater than 99% yield using PI-Ru (1 mol %) for 2 h; 95% yield using PI-Ru (0.5 mol %) for 15 h.
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