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3
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37049043532
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14
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0027513477
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16
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84986437005
-
-
3) were subjected to a directed Monte Carlo search of conformational space. The relative strain energies of the "global" minima indicated that 3 is more stable than 2 by 6 kcal/ mol. See: Mohamadi, F.; Richards, N. G. J.; Guida, W. C.; Liskamp, R.; Caulfield, C.; Chang, G.; Hendrickson, T.; Still, W. C. J. Comput. Chem. 1990, 11, 440.
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Chang, G.6
Hendrickson, T.7
Still, W.C.8
-
17
-
-
37049102121
-
-
Other examples of thermal 6π electrocyclizations followed by [1,5] sigmatropic H-shifts have been reported; see: Darcy, P. J.; Hart, R. J.; Heller, H. G. J. Chem. Soc., Perkin Trans. 1 1978, 571.
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0025303346
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(a) Fehr, C.; Galindo, J.; Guntern, O. Tetrahedron Lett. 1990, 31, 4021.
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-
19
-
-
0000338089
-
-
Matrix Presented
-
(b) Paquette et al. have reported that trienedione i electrocyclizes and then undergoes H-shift at 110°C: Paquette, L. A.; Bzowej, E. I.; Branan, B. M.; Stanton, K. J. J. Org. Chem. 1995, 60, 7277. (Matrix Presented)
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Paquette, L.A.1
Bzowej, E.I.2
Branan, B.M.3
Stanton, K.J.4
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20
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0026463461
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Ishii, H.; Ishikawa, T.; Wada, H.; Miyazaki, H.; Kaneko, Y.; Harayama, T. Chem. Pharm. Bull. 1992, 40, 2614.
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Ishii, H.1
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Kaneko, Y.5
Harayama, T.6
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21
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0000915585
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and references cited therein
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(a) Wessely, F.; Swoboda, J.; Guth, V. Monatsh. 1964, 95, 649 and references cited therein.
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Wessely, F.1
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24
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0000340061
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26
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8544249658
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unpublished results, Penn State University
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P. Maslak, unpublished results, Penn State University.
-
-
-
Maslak, P.1
-
27
-
-
8544265805
-
-
Matrix Presented
-
(Matrix Presented)
-
-
-
-
28
-
-
37049040187
-
-
Acetic acid and p-nitrobenzoic acid catalysis of 1,3 acetate shifts have been reported: (a) Braude, E. A.; Turner, D. W.; Waight, E. S. J. Chem. Soc. 1958, 2396. (b) Pocker, Y. J. Chem. Soc. 1958, 4318.
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Braude, E.A.1
Turner, D.W.2
Waight, E.S.3
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29
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37049057003
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Acetic acid and p-nitrobenzoic acid catalysis of 1,3 acetate shifts have been reported: (a) Braude, E. A.; Turner, D. W.; Waight, E. S. J. Chem. Soc. 1958, 2396. (b) Pocker, Y. J. Chem. Soc. 1958, 4318.
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Pocker, Y.1
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Still, W.C.1
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31
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0009609408
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Boden, N.1
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0030576985
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Uenishi, J.1
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