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3
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0030789180
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[3a] R. M. Uittenbogaard, J.-P. G. Seerden, H. W. Scheeren, Tetrahedron 1997, 53, 11929-11936.
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7
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0037842768
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[3e] L. W. A. van Berkom, G. J. T. Kuster, F. Kalmoua, R. de Gelder, H. W. Scheeren, Tetrahedron Lett. 2003, 44, 5091-5093.
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Van Berkom, L.W.A.1
Kuster, G.J.T.2
Kalmoua, F.3
De Gelder, R.4
Scheeren, H.W.5
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8
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0347762509
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[3f] L. W. A. Van Berkom, G. J. T. Kuster, H. W. Scheeren, Mol. Diversity 2003, 6, 271-282.
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Van Berkom, L.W.A.1
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Scheeren, H.W.3
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10
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8144225852
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-
note
-
Crystallographic data for the structures 3, 11, and 14 have been deposited with the Cambridge Crystallography Data Centre as supplementary publication numbers CCDC-239386, CCDC-239387, and CCDC-239388 respectively. Copies of the data can be obtained, free of charge, on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK (Fax: (internat.) +44(0)-1223-336033 or E-mail: deposit@ccdc.cam.ac.uk).
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-
-
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12
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8144219974
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-
note
-
Using a catalytic amount of base the reaction did not go to completion.
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-
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13
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33845471772
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[8a] A. Padwa, K. F. Koehler, A. Rodriguez, J. Org. Chem. 1984, 49, 282-288.
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Padwa, A.1
Koehler, K.F.2
Rodriguez, A.3
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14
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0000399766
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[8b] A. Padwa, K. F. Koehler, A. Rodriguez, J. Am. Chem. Soc. 1981, 103, 4974-4975.
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Padwa, A.1
Koehler, K.F.2
Rodriguez, A.3
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15
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8144231034
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-
note
-
In the presence of the weak base triethylamine the formation of 8 may also go in a more concerted fashion.
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17
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0342443918
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M. Joucla, J. Hamelin, R. Carrie, Tetrahedron 1974, 30, 1121-1126.
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Joucla, M.1
Hamelin, J.2
Carrie, R.3
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18
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8144225288
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-
note
-
Treatment of the lactam 6 with dimethylamine for 2 h gave 56% conversion into the lactam 10 (Scheme 5).
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-
-
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19
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8144231565
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-
note
-
Unfortunately all attempts to isolate the intermediate nitroso acetals failed, because evaporation of solvent in vacuo caused decomposition.
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-
-
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20
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0001039046
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The regioselectivity of the (4+2)/(3+2) cycloaddition reaction in the 1,3-dipolarcycloaddition step was quite surprising, since the reaction of N-alkylnitrones with nitroethene gave exclusive formation of 4-substituted isoxazolidines, see: A. Padwa, L. Fisera, K. F. Koehler, A. Rodriguez, G. S. K. Wong, J. Org. Chem. 1984, 49, 276-281.
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J. Org. Chem.
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Padwa, A.1
Fisera, L.2
Koehler, K.F.3
Rodriguez, A.4
Wong, G.S.K.5
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21
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85008553095
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[15a] R. V. Hoffman, N. K. Nayyar, B. W. Klinekole, J. Am. Chem. Soc. 1992, 114, 6262-6263.
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Hoffman, R.V.1
Nayyar, N.K.2
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22
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0001235008
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[15b] R. V. Hoffman, N. K. Nayyar, W. Chen, J. Am. Chem. Soc. 1993, 115, 5031-5034.
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Hoffman, R.V.1
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Chen, W.3
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23
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0026717931
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A similar intermolecular reaction was observed upon treatment of N-tosyl-β-lactams with triethylamine in the presence of a nucleophile to give 3-substituted lactams in moderate yield. [16a] C. M. Garparski, M. Teng, M. J. Miller, J. Am. Chem. Soc. 1992, 114, 2741-2743. [16b] M. Teng, M. J. Miller, J. Am. Chem. Soc. 1993, 115, 548-554. [16c] J. R. Bellettini, M. J. Miller, J. Org. Chem. 1996, 61, 7959-7962.
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Garparski, C.M.1
Teng, M.2
Miller, M.J.3
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24
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0027402646
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A similar intermolecular reaction was observed upon treatment of N-tosyl-β-lactams with triethylamine in the presence of a nucleophile to give 3-substituted lactams in moderate yield. [16a] C. M. Garparski, M. Teng, M. J. Miller, J. Am. Chem. Soc. 1992, 114, 2741-2743. [16b] M. Teng, M. J. Miller, J. Am. Chem. Soc. 1993, 115, 548-554. [16c] J. R. Bellettini, M. J. Miller, J. Org. Chem. 1996, 61, 7959-7962.
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J. Am. Chem. Soc.
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Teng, M.1
Miller, M.J.2
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25
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0029825119
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A similar intermolecular reaction was observed upon treatment of N-tosyl-β-lactams with triethylamine in the presence of a nucleophile to give 3-substituted lactams in moderate yield. [16a] C. M. Garparski, M. Teng, M. J. Miller, J. Am. Chem. Soc. 1992, 114, 2741-2743. [16b] M. Teng, M. J. Miller, J. Am. Chem. Soc. 1993, 115, 548-554. [16c] J. R. Bellettini, M. J. Miller, J. Org. Chem. 1996, 61, 7959-7962.
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J. Org. Chem.
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Bellettini, J.R.1
Miller, M.J.2
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26
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8144229601
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note
-
Under the basic reaction conditions the aldehyde probably reacts further.
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27
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0001096447
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R. W. M. Aben, R. Smit, J. W. Scheeren, J. Org. Chem. 1987, 52, 365-370.
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Aben, R.W.M.1
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31
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0009154238
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R. de Gelder, R. A. G. de Graaff, H. Schenk, Acta Crystallogr., Sect. A 1993, 49, 287-293.
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De Gelder, R.1
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Schenk, H.3
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