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9
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A putative ε agonist: Fujii, H.; Narita, M.; Mizoguchi, H.; Murachi, M.; Tanaka, T.; Kawai, K.; Tseng, L. F.; Nagase, H. Bioorg. Med. Chem. 2004, 12, 4133.
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A putative ε agonist: Fujii, H.; Narita, M.; Mizoguchi, H.; Murachi, M.; Tanaka, T.; Kawai, K.; Tseng, L. F.; Nagase, H. Bioorg. Med. Chem. 2004, 12, 4133.
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The thermal decarboxylation of a β-lactone has been widely used for preparation of an olefin. (a) Pommier, A.; Pons, J.-M. Synthesis 1993, 441.
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The thermal decarboxylation of a β-lactone has been widely used for preparation of an olefin. (a) Pommier, A.; Pons, J.-M. Synthesis 1993, 441.
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75749134266
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(b) Rayner, C. M. In Comprehensive Organic Functional Group Transformations; Katritzky, A. R., Meth-Cohn, O., Rees, C. W., Eds.; Pergamon Press: Oxford, 1995; Vol. 1, pp 673-718.
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Recent examples of the thermal decarboxylation of β-lactones: (a) Braun, N. A.; Meier, M.; Schmaus, G.; Hölscher, B.; Pickenhagen, W. Helv. Chim. Acta 2003, 86, 2698.
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Olefins have been prepared by elimination reaction in which oxazolidinone functioned as a leaving group, a Danishefsky, S. J, Panek, J. S. J. Am. Chem. Soc. 1987, 109, 917
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Olefins have been prepared by elimination reaction in which oxazolidinone functioned as a leaving group. (a) Danishefsky, S. J.; Panek, J. S. J. Am. Chem. Soc. 1987, 109, 917.
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34
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2442647730
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(c) Padwa, A.; Brodney, M. A.; Lynch, S. M.; Rashatasakhon, P.; Wang, Q.; Zhang, H. J. Org. Chem. 2004, 69, 3735.
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35
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75749090557
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Another possible mechanism is discussed in the Supporting Information
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Another possible mechanism is discussed in the Supporting Information.
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36
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75749145218
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Some examples of syn elimination have been reported in molecules in which β-hydrogen and leaving group could not achieve an antiperiplanar conformation. Smith, M. B, March, J. In March's Advanced Organic Chemistry; 6th ed, John Wiley & Sons: New York, 2007; pp 1482-1483 and references therein
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Some examples of syn elimination have been reported in molecules in which β-hydrogen and leaving group could not achieve an antiperiplanar conformation. Smith, M. B.; March, J. In March's Advanced Organic Chemistry; 6th ed.; John Wiley & Sons: New York, 2007; pp 1482-1483 and references therein.
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37
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75749099020
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In cyclic systems, the extent of anti and syn elimination depends on ring size. Cyclohexyl systems have a very strong preference for anti elimination. (a) Carey, F. A.; Sundberg, R. J. In Advanced Organic Chemistry, Part A: Structure and Mechanisms; 5th ed.; Springer: New York, 2007; p 559.
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In cyclic systems, the extent of anti and syn elimination depends on ring size. Cyclohexyl systems have a very strong preference for anti elimination. (a) Carey, F. A.; Sundberg, R. J. In Advanced Organic Chemistry, Part A: Structure and Mechanisms; 5th ed.; Springer: New York, 2007; p 559.
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38
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75749131731
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See also ref 15
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(b) See also ref 15.
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39
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0003922509
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Oxford University Press: New York
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Clayden, J.; Greeves, N.; Warren, S.; Wother, P. In Organic Chemistry; Oxford University Press: New York, 2001; pp 496-497.
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Clayden, J.1
Greeves, N.2
Warren, S.3
Wother, P.4
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40
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75749103881
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Determination of the stereochemistries of compounds 15 and 16 is described in the Supporting Information.
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Determination of the stereochemistries of compounds 15 and 16 is described in the Supporting Information.
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