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13444302382
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Interestingly, acyclic enones gave different products under similar conditions, see
-
Interestingly, acyclic enones gave different products under similar conditions, see: Mahoney, J. M.; Smith, C. R.; Johnston, J. N. J. Am. Chem. Soc. 2005, 127, 1354-1355
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Mahoney, J.M.1
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Johnston, J.N.3
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24
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77955167061
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Such 1,3-cycloaddition of alkylazide enone to triazoline was presumed in the literature, but chemists have never observed this intermediate up until the present moment
-
Such 1,3-cycloaddition of alkylazide enone to triazoline was presumed in the literature, but chemists have never observed this intermediate up until the present moment.
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25
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0000614865
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For the decomposition of nonpolarized triazoline, see
-
For the decomposition of nonpolarized triazoline, see: Wladkowski, B. D.; Smith, R. H.; Michejda, C. J. J. Am. Chem. Soc. 1991, 113, 7893-7897
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Smith, R.H.2
Michejda, C.J.3
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26
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0001113839
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Smith, R. H.; Wladkowski, B. D.; Taylor, J. E.; Thompson, E. J.; Pruski, B.; Klose, J. R.; Andrews, A. W.; Michejda, C. J. J. Org. Chem. 1993, 58, 2097-2103
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Taylor, J.E.3
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Klose, J.R.6
Andrews, A.W.7
Michejda, C.J.8
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27
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0031466261
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Schmidt, B. F.; Snyder, E. J.; Carroll, R. M.; Farnsworth, D. W.; Michejda, C. J.; Smith, R. H. J. Org. Chem. 1997, 62, 8660-8665
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Smith, R.H.6
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28
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39549110845
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For the decomposition of polarized triazoline, see
-
For the decomposition of polarized triazoline, see: Hong, K. B.; Donahue, M. G.; Johnston, J. N. J. Am. Chem. Soc. 2008, 130, 2323-2328
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Hong, K.B.1
Donahue, M.G.2
Johnston, J.N.3
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29
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77955152232
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Initially, we thought that the migration attitude between the aryl group and acyl group would play an important role in the regioselectivity during this process
-
Initially, we thought that the migration attitude between the aryl group and acyl group would play an important role in the regioselectivity during this process.
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30
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77955164897
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Interestingly, Molander et al. had observed (4h) that, treatment of the analogue of 7 in xylenes under reflux condition for 18-24 h gave enamides as sole products
-
Interestingly, Molander et al. had observed (4h) that, treatment of the analogue of 7 in xylenes under reflux condition for 18-24 h gave enamides as sole products.
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31
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77955162340
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For the syntheses of substrates see the Supporting Information for details
-
For the syntheses of substrates see the Supporting Information for details.
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32
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84855639465
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The crystallographic coordinates for 1 7 have been deposited with the Cambridge Crystallographic Data Centre; deposition no. 742901. These data can be obtained free of charge from the Cambridge Crystallographic Data Centre, 12 Union Rd., Cambridge CB2 1EZ, UK or via
-
The crystallographic coordinates for 1 7 have been deposited with the Cambridge Crystallographic Data Centre; deposition no. 742901. These data can be obtained free of charge from the Cambridge Crystallographic Data Centre, 12 Union Rd., Cambridge CB2 1EZ, UK or via www.ccdc.cam.ac.uk/data-request/cif.
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33
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33845554690
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3 in a fridge at -6 °C after NMR experiment. The analogues of 14 were all treated with the same operation in this work, unfortunately no crystallines participated. The crystallographic coordinates for 14 have been deposited with the Cambridge Crystallographic Data Centre; deposition no. 742900. These data can be obtained free of charge from the Cambridge Crystallographic Data Centre, 12 Union Rd., Cambridge CB2 1EZ, UK or via; It should be noted that the earlier assigned structure of 14 is now demonstrated to be erroneous, see
-
3 in a fridge at -6 °C after NMR experiment. The analogues of 14 were all treated with the same operation in this work, unfortunately no crystallines participated. The crystallographic coordinates for 14 have been deposited with the Cambridge Crystallographic Data Centre; deposition no. 742900. These data can be obtained free of charge from the Cambridge Crystallographic Data Centre, 12 Union Rd., Cambridge CB2 1EZ, UK or via www.ccdc.cam.ac.uk/data-request/cif; It should be noted that the earlier assigned structure of 14 is now demonstrated to be erroneous, see: Harding, T. T.; Mariano, P. S. J. Org. Chem. 1982, 47, 482-485
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Harding, T.T.1
Mariano, P.S.2
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0005841540
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Brumfield, M. A.; Mariano, P. S.; Yoon, U. C. Tetrahedron Lett. 1983, 24, 5567-5570
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Brumfield, M.A.1
Mariano, P.S.2
Yoon, U.C.3
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35
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0037073237
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The geometry was assigned based on spectroscopic, see
-
The geometry was assigned based on spectroscopic, see: Gilli, P.; Bertolasi, V.; Pretto, L.; Lycka, A.; Gilli, G. J. Am. Chem. Soc. 2002, 124, 13554-13567
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Gilli, P.1
Bertolasi, V.2
Pretto, L.3
Lycka, A.4
Gilli, G.5
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36
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0000829410
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-
For the introduction of 1a, see
-
For the introduction of 1a, see: Prelog, V; Wiesner, K; Khorana, H. G; Kenner, G. W Helv. Chim. Acta 1949, 59, 453
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(1949)
Helv. Chim. Acta
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Prelog, V.1
Wiesner, K.2
Khorana, H.G.3
Kenner, G.W.4
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37
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77955154804
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De Mayo P. Part 2;, Ed.; Interscience: New York
-
Warnhoff, E. W In Molecular Rearrangements, Part 2; de Mayo, P., Ed.; Interscience: New York, 1964; pp 846 and 847
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(1964)
Molecular Rearrangements
, pp. 846-847
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Warnhoff, E.W.1
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38
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0000077697
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Manske R.H.F. Academic Press: London, UK For the synthesis of 1a, see
-
Boekelheide, V In The Alkaloids; Manske, R. H. F., Ed.; Academic Press: London, UK, 1960; Vol. VII, pp 205. For the synthesis of 1a, see
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(1960)
The Alkaloids
, vol.7
, pp. 205
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Boekelheide, V.1
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40
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0001598684
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Iida, H.; Takarai, T.; Kibayashi, C. J. Org. Chem. 1978, 43, 975-979
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Iida, H.1
Takarai, T.2
Kibayashi, C.3
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41
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84855633581
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1H NMR spectra between their sample and ours in the aromatic area (6.58 vs 6.59, and 6.65 vs 6.81). For details, see ref 14e
-
1H NMR spectra between their sample and ours in the aromatic area (6.58 vs 6.59, and 6.65 vs 6.81). For details, see ref 14e.
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