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Ketone 2a was prepared through treatment of cinnamic acid Weinreb amide with propenylmagnesium bromide. See Supporting Information for full details.
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Ketone 2a was prepared through treatment of cinnamic acid Weinreb amide with propenylmagnesium bromide. See Supporting Information for full details.
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The regiochemistry of 4a was determined by NMR correlation experiments.
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The regiochemistry of 4a was determined by NMR correlation experiments.
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The results of this study were first presented by poster at the BOSS XI conference, Gent, Belgium, July 13-18, 2008.
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The results of this study were first presented by poster at the BOSS XI conference, Gent, Belgium, July 13-18, 2008.
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72
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Amere, M.; Blanchet, J.; Lasne, M.-C; Rouden, J. Tetrahedron Lett. 2008, 49, 2541.
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Lasne, M.-C.3
Rouden, J.4
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Ieawsuwan, W.2
Antonchick, A.P.3
Nachtsheim, B.J.4
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74
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64349089548
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No Nazarov cyclopentenone product is observed on treating divinylketone 2 with 5% catalyst 6 in MeCN at room temperature for 60 h.
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No Nazarov cyclopentenone product is observed on treating divinylketone 2 with 5% catalyst 6 in MeCN at room temperature for 60 h.
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75
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0040310228
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Jackson, A. H.; Naidoo, B.; Smith, P. Tetrahedron 1968, 24, 6119.
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Naidoo, B.2
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England, D. B.; Kuss, T. D. O.; Keddy, R. G.; Kerr, M. A. J. Org. Chem. 2001, 66, 4704.
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J. Org. Chem
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England, D.B.1
Kuss, T.D.O.2
Keddy, R.G.3
Kerr, M.A.4
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Liu, K. G.; Robichaud, A. J.; Lo, J. R.; Mattes, J. F.; Cai, Y. X. Org. Lett. 2006, 8, 5769.
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Org. Lett
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Liu, K.G.1
Robichaud, A.J.2
Lo, J.R.3
Mattes, J.F.4
Cai, Y.X.5
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78
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64349122575
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The possibility of a direct Friedel-Crafts cyclization at indole C-2 exists in the absence of observing the spirocycle II. This mechanistic matter is the focus of ongoing studies.
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The possibility of a direct Friedel-Crafts cyclization at indole C-2 exists in the absence of observing the spirocycle II. This mechanistic matter is the focus of ongoing studies.
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