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2
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Santos-Expósito, A.3
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de Armas, P.5
García-Tellado, F.6
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Gimbert C., Lumbierres M., Marchi C., Moreno-Mañas M., Sebastian R.M., and Vallribera A. Tetrahedron 61 (2005) 8598-8605
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Gimbert, C.1
Lumbierres, M.2
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Vallribera, A.6
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35048856419
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Gabillet S., Lecerclé D., Loreau O., Carboni M., Dézard S., Gomis J.-M., and Taran F. Org. Lett. 9 (2007) 3925-3927
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Gabillet, S.1
Lecerclé, D.2
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Dézard, S.5
Gomis, J.-M.6
Taran, F.7
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23
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33947540894
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Gabillet S., Leclercé D., Loreau O., Dézard S., Gomis J.-M., and Taran F. Synthesis (2007) 515-522
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Synthesis
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Gabillet, S.1
Leclercé, D.2
Loreau, O.3
Dézard, S.4
Gomis, J.-M.5
Taran, F.6
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24
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67649304700
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Tejedor D., Santos-Expósito A., Méndez-Abt G., Ruiz-Pérez C., and García-Tellado F. Synlett (2009) 1223-1226
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Synlett
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Tejedor, D.1
Santos-Expósito, A.2
Méndez-Abt, G.3
Ruiz-Pérez, C.4
García-Tellado, F.5
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53849119129
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For a review on the synthesis of methylenetetrahydrofurans by [3+2] annulations see:
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For a review on the synthesis of methylenetetrahydrofurans by [3+2] annulations see:. Yamazaki S. Chem. Eur. J. 14 (2008) 6026-6036
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Yamazaki, S.1
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33
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67649357397
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note
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2 (2 mL) under argon atmosphere. The resulting mixture was stirred at room temperature for 24 h and the solvents were removed. The crude product was purified by TLC on silica gel plates (heptane/ethyl acetate, 7/3 mixture) to give the pure Z- and E-isomers of the final oxazolidine 3a. No defined by-products have been isolated from these reactions.
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34
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67649308927
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note
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3) δ 21.8, 52.1, 68.2, 94.1, 106.6, 126.7, 128.1, 128.8, 129.3, 130.0, 135.1, 136.8, 144.1, 145.1, 166.0 ppm.
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3142724941
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Tejedor D., González-Cruz D., García-Tellado F., Marrero-Tellado J.J., and Lopez Rodríguez M. J. Am. Chem. Soc. 126 (2004) 8390-8391
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Tejedor, D.1
González-Cruz, D.2
García-Tellado, F.3
Marrero-Tellado, J.J.4
Lopez Rodríguez, M.5
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37
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13244267096
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Tejedor D., Santos-Expósito A., González-Cruz D., Marrero-Tellado J.J., and García-Tellado F. J. Org. Chem. 70 (2005) 1042-1045
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Tejedor, D.1
Santos-Expósito, A.2
González-Cruz, D.3
Marrero-Tellado, J.J.4
García-Tellado, F.5
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38
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4444280231
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Junge K., Hagemann B., Enthaler S., Spannenberg A., Michalik M., Oehme G., Monsees A., Riermeier T., and Beller M. Tetrahedron: Asymmetry 15 (2004) 2621-2631
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(2004)
Tetrahedron: Asymmetry
, vol.15
, pp. 2621-2631
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Junge, K.1
Hagemann, B.2
Enthaler, S.3
Spannenberg, A.4
Michalik, M.5
Oehme, G.6
Monsees, A.7
Riermeier, T.8
Beller, M.9
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39
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33745941049
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For uses of t-Bu-Binepine as chiral organocatalyst, see:
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For uses of t-Bu-Binepine as chiral organocatalyst, see:. Wilson J.E., and Fu G.C. Angew. Chem., Int. Ed. 45 (2006) 1426-1429
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(2006)
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Wilson, J.E.1
Fu, G.C.2
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41
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54849416798
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Voituriez A., Panossian A., Fleury-Brégeot N., Retailleau P., and Marinetti A. J. Am. Chem. Soc. 130 (2008) 14030-14031
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Voituriez, A.1
Panossian, A.2
Fleury-Brégeot, N.3
Retailleau, P.4
Marinetti, A.5
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42
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67649374150
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note
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Racemization of the stereogenic carbon of 3a due to the basic reaction conditions cannot be ruled out.
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