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Greenberg, A, Breneman, C. M, Liebman, J. F, Eds, Wiley: New York
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(b) Greenberg, A., Breneman, C. M., Liebman, J. F., Eds. Amide Linkage: Selected Structural Aspects in Chemistry, Biochemistry, and Materials Science; Wiley: New York, 2000.
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Yao, L.; Wrobleski, A. D.; Golden, J. E.; Powell, D. R.; Aube, J. J. Am. Chem. Soc. 2005, 127, 4552-4553.
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Yao, L.1
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Golden, J.E.3
Powell, D.R.4
Aube, J.5
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4
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For some recent papers regarding the reactivity of twisted amides: see a
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For some recent papers regarding the reactivity of twisted amides: see (a) Kirby, A. J.; Komarov, I. V.; Wothers, P. D.; Feeder, N. Angew. Chem., Int. Ed. 1998, 37, 785-786.
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Komarov, I.V.2
Wothers, P.D.3
Feeder, N.4
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(b) Kirby, A. J.; Komarov, I. V.; Feeder, N. J. Chem. Soc., Parkin Trans 2 2001, 522-529.
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Feeder, N.3
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(c) Bashore, C. G.; Samardjiev, I. J.; Bordner, J.; Coe, J. W. J. Am. Chem. Soc. 2003, 125, 3268-3272.
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Coe, J.W.4
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(b) Milligan, G. L.; Mossman, C. J.; Aube, J. J. Am. Chem. Soc. 1995, 117, 10449-10459.
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Aube, J.2
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0034199893
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The first example of any bridged product from an intramolecular Schmidt reaction actually occurred during synthetic studies toward aspidospermidine. However, this involved the reaction of a nonadjacent azidoalkyl chain with a ketal. affording a bridged orthoaminal product and not a lactam. See: (a) Iyengar, R, Schildknegt, K, Aube, J. Org. Lett. 2000, 2, 1625-1627
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The first example of any bridged product from an intramolecular Schmidt reaction actually occurred during synthetic studies toward aspidospermidine. However, this involved the reaction of a nonadjacent azidoalkyl chain with a ketal. affording a bridged orthoaminal product and not a lactam. See: (a) Iyengar, R.; Schildknegt, K.; Aube, J. Org. Lett. 2000, 2, 1625-1627.
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(b) Iyengar, R.; Schildknegt, K.; Morton, M.; Aube, J. J. Org. Chem. 2005, 70, 10645-10652.
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Iyengar, R.1
Schildknegt, K.2
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13
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33947282473
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The A values for Ph and i-Pr are 2.8 and 2.21, respectively.
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The A values for Ph and i-Pr are 2.8 and 2.21, respectively.
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14
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0030043489
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(a) Dougherty, D. A. Science 1996, 271, 163-168.
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(a) Lakshminarasimhan, P.; Sunoj, R. B.; Chandrasekhar, J.; Ramamurthy, V. J. Am. Chem. Soc. 2000, 122, 4815-4816.
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(d) Yamada, S.; Saitoh, M.; Misono, T. Tetrahedron Lett. 2002, 43, 5853-5857.
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(e) Kaanumalle, L. S.; Sivaguru, J.; Arunkumar, N.; Karthikeyan, S.; Ramamurthy, V. Chem. Commun. 2003, 116-117.
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33947288262
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4 provided compound 9b as a single product in 92% yield, suggesting that the regiochemistry of the reaction is Lewis acid-dependent. Further work to examine this point is in progress.
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4 provided compound 9b as a single product in 92% yield, suggesting that the regiochemistry of the reaction is Lewis acid-dependent. Further work to examine this point is in progress.
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