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0010561891
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13C NMR, FTIR, and HRMS data.
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6. a) Maligres, P.E.; Upadhyay, V.; Rossen, K.; Cianciosi, S.J.; Purick, R.M.; Eng, K.K.; Reamer, R.A.; Askin, D.; Volante, R.P.; Reider, P.J. Tetrahedron Lett. 1995, 36, 2195.
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11. a) For a review; d'Angelo, J.; Desmaële, D.; Dumas, F.; Guingant, A. Tetrahedron: Asymmetry 1992, 3, 459.
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22
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0004087670
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Rappoport, Z. Ed.; John Wiley & Sons: New York. The initial complex 15 may progress along the reaction coordinate through an aza-ene mechanism for concerted proton transfer, or via formation of the hetero-Diels-Alder dihydropyran with subsequent isomerization
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12. For a mechanistic presentation: Hickmott, P.W. in The Chemistry of Enamines, Part 1; Rappoport, Z. Ed.; John Wiley & Sons: New York, 1994 pp. 843-871. The initial complex 15 may progress along the reaction coordinate through an aza-ene mechanism for concerted proton transfer, or via formation of the hetero-Diels-Alder dihydropyran with subsequent isomerization.
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27
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0010632965
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note
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25NO 247.1936, found 247.1943.
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