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2-Piperidino-1,1,2-triphenylethanol (5) is commercially available in both enantiomeric forms.
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2Zn (0.16 M).
-
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49
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1842423262
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note
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Concentration of ethylphenylzinc was estimated to be 0.32 M, based on the assumption that the equilibrium is completely shifted toward the formation of the mixed zinc species.
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2Zn (0.27 M).
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2Zn in excess, out of a maximum of 33 mL.
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65
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1842423260
-
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note
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The present experiment suggests that formation of 10 is kinetically favored over 11. However, during the course of the reaction scrambling between ethyl and phenyl on the Zn center of the catalyst cannot be ruled out.
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