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Volumn 53, Issue 34, 1997, Pages 11843-11852

1,3-Dipolar cycloaddition reactions of nitrones with alkyl vinyl ethers catalyzed by chiral oxazaborolidines

Author keywords

[No Author keywords available]

Indexed keywords

ISOQUINOLINE DERIVATIVE; PYRROLIZIDINE ALKALOID;

EID: 0030877158     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4020(97)00757-6     Document Type: Article
Times cited : (88)

References (39)
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    • c) Dicken, C.M.; DeShong, P. J. Org. Chem. 1982, 47, 2047-2051; Dicken, C.M.; DeShong, P. ; Staib, R.R.; Freyer, A.J.; Weinreb, S.M. J. Org. Chem. 1982, 47, 4397;
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    • Dicken, C.M.1    DeShong, P.2
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    • d) DeShong, P.; Leginus, J.M. J. Am. Chem. Soc. 1983, 105, 1686-1688; DeShong, P.; Dicken, C.M.; Leginus, J.M.; Whittle, R.R. J. Am. Chem. Soc. 1984, 106, 5598-5602;
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    • nitrone controlled 1,3-dipolar cycloadditions with electron-deficient dipolarophiles were reported: a) Gothelf, K.V.; Jørgensen, K.A. J. Org. Chem. 1994, 59, 5687-5691;
    • (1994) J. Org. Chem. , vol.59 , pp. 5687-5691
    • Gothelf, K.V.1    Jørgensen, K.A.2
  • 25
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    • -1 less negative than ΔV‡ for the usual 1,4-cycloaddition (e.g. Diels-Alder) reaction. For examples see: a) Yoshimura, Y.; Osugi, J.; Nakahara, M. J. Am. Chem. Soc. 1983, 105, 5415-5418;
    • (1983) J. Am. Chem. Soc. , vol.105 , pp. 5415-5418
    • Yoshimura, Y.1    Osugi, J.2    Nakahara, M.3
  • 26
    • 0028092232 scopus 로고
    • b) Ahn, C.; Kennington, Jr., J.W.; DeShong, P. J. Org. Chem. 1994, 59, 6282-6286. For references on the application of high pressure in organic synthesis see : Ciobanu, M.; Matsumoto, K. Liebigs Ann./Recueil 1997, 623-635; Matsumoto, K.; Archeson, R.M., Organic Synthesis at High Pressure, John Wiley & Sons, New York, 1991; Isaacs, N.S. Tetrahedron 1991, 47, 8463, and references cited therein.
    • (1994) J. Org. Chem. , vol.59 , pp. 6282-6286
    • Ahn, C.1    Kennington J.W., Jr.2    DeShong, P.3
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    • b) Ahn, C.; Kennington, Jr., J.W.; DeShong, P. J. Org. Chem. 1994, 59, 6282-6286. For references on the application of high pressure in organic synthesis see : Ciobanu, M.; Matsumoto, K. Liebigs Ann./Recueil 1997, 623-635; Matsumoto, K.; Archeson, R.M., Organic Synthesis at High Pressure, John Wiley & Sons, New York, 1991; Isaacs, N.S. Tetrahedron 1991, 47, 8463, and references cited therein.
    • (1997) Liebigs Ann./Recueil , pp. 623-635
    • Ciobanu, M.1    Matsumoto, K.2
  • 28
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    • John Wiley & Sons, New York
    • b) Ahn, C.; Kennington, Jr., J.W.; DeShong, P. J. Org. Chem. 1994, 59, 6282-6286. For references on the application of high pressure in organic synthesis see : Ciobanu, M.; Matsumoto, K. Liebigs Ann./Recueil 1997, 623-635; Matsumoto, K.; Archeson, R.M., Organic Synthesis at High Pressure, John Wiley & Sons, New York, 1991; Isaacs, N.S. Tetrahedron 1991, 47, 8463, and references cited therein.
    • (1991) Organic Synthesis at High Pressure
    • Matsumoto, K.1    Archeson, R.M.2
  • 29
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    • and references cited therein
    • b) Ahn, C.; Kennington, Jr., J.W.; DeShong, P. J. Org. Chem. 1994, 59, 6282-6286. For references on the application of high pressure in organic synthesis see : Ciobanu, M.; Matsumoto, K. Liebigs Ann./Recueil 1997, 623-635; Matsumoto, K.; Archeson, R.M., Organic Synthesis at High Pressure, John Wiley & Sons, New York, 1991; Isaacs, N.S. Tetrahedron 1991, 47, 8463, and references cited therein.
    • (1991) Tetrahedron , vol.47 , pp. 8463
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    • The pressure dependence of the enantioselectivity was assumed to originate from a difference in activation volume of the two possible diastereomeric transition state structures: Tietze, L.F.; Ott, C.; Gerke, K.; Buback, M. Angew. Chem. Int. Ed. Engl. 1993, 32, 1485-1486.
    • (1993) Angew. Chem. Int. Ed. Engl. , vol.32 , pp. 1485-1486
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  • 31
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    • note
    • In the presence of 20 mol% of a chiral oxazaborolidine catalyst the reaction did not proceed at standard conditions in dichloromethane as solvent.
  • 32
    • 0343885458 scopus 로고    scopus 로고
    • note
    • The related boron-phenyl substituted oxazaborolidines did not improve the enantioselectivity.
  • 37
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    • Murahashi, S.-I.; Shiota, T.; Imada, Y. Org. Synth. 1992, 70, 265-271; Murahashi, S.-I.; Mitsui, H.; Watanabe, T.; Zenki, S.-i. Tetrahedron Lett. 1983, 24, 1049-1052.
    • (1992) Org. Synth. , vol.70 , pp. 265-271
    • Murahashi, S.-I.1    Shiota, T.2    Imada, Y.3
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