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Facile rearrangement of lia to acyltetrahydrothiophene 13a limited possible condensation conditions.
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Facile rearrangement of lia to acyltetrahydrothiophene 13a limited possible condensation conditions.
-
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40
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33847567485
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Under no conditions examined was competing formation of 12 minimized significantly.
-
Under no conditions examined was competing formation of 12 minimized significantly.
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41
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33847545089
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Small amounts (∼5%) of acyltetrahydrothiophenes were formed under these conditions.
-
Small amounts (∼5%) of acyltetrahydrothiophenes were formed under these conditions.
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42
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0343676687
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1H NMR spectra of the crude reaction product attributable to an acetyl methyl group were seen.
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This is a reasonable assumption considering the low barriers of C-C single bond rotations: Eliel, E. L.; Allinger, N. L.; Angyal, S. J.; Morrison, G. A. Confonnalional Analysis; American Chemical Society; Washington, DC, 1965; Chapters 2 and 3.
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