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Volumn 41, Issue 31, 2000, Pages 5943-5946

New method for activation of aldimines in cycloaddition of lithium ynolates with N-2-methoxyphenyl imines leading to β-lactams

Author keywords

Azetidinones; Chelation; Imines; Ynolates

Indexed keywords

BETA LACTAM DERIVATIVE; IMINE; LITHIUM DERIVATIVE;

EID: 0034730012     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(00)00984-9     Document Type: Article
Times cited : (30)

References (27)
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    • For reviews see: (a) Bloch, R. Chem. Rev. 1998, 98, 1407-1438. (b) Enders, D.; Reinhold, U. Tetrahedron: Asymmetry 1997, 8, 1895-1946. (c) Volkmann, R. A. In Comprehensive Organic Synthesis; Schreiber, S. L., Ed.; Pergamon: Oxford, 1991; Vol. 1, pp. 355-396. (d) Kleinman, E. F.; Volkmann, R. A. In Comprehensive Organic Synthesis; Heathcock, C. H., Ed.; Pergamon: Oxford, 1991; Vol. 2, pp. 975-1006.
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    • For reviews see: (a) Bloch, R. Chem. Rev. 1998, 98, 1407-1438. (b) Enders, D.; Reinhold, U. Tetrahedron: Asymmetry 1997, 8, 1895-1946. (c) Volkmann, R. A. In Comprehensive Organic Synthesis; Schreiber, S. L., Ed.; Pergamon: Oxford, 1991; Vol. 1, pp. 355-396. (d) Kleinman, E. F.; Volkmann, R. A. In Comprehensive Organic Synthesis; Heathcock, C. H., Ed.; Pergamon: Oxford, 1991; Vol. 2, pp. 975-1006.
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    • 0038106171 scopus 로고    scopus 로고
    • (c) Schreiber, S. L., Ed.; Pergamon: Oxford
    • For reviews see: (a) Bloch, R. Chem. Rev. 1998, 98, 1407-1438. (b) Enders, D.; Reinhold, U. Tetrahedron: Asymmetry 1997, 8, 1895-1946. (c) Volkmann, R. A. In Comprehensive Organic Synthesis; Schreiber, S. L., Ed.; Pergamon: Oxford, 1991; Vol. 1, pp. 355-396. (d) Kleinman, E. F.; Volkmann, R. A. In Comprehensive Organic Synthesis; Heathcock, C. H., Ed.; Pergamon: Oxford, 1991; Vol. 2, pp. 975-1006.
    • (1991) In Comprehensive Organic Synthesis , vol.1 , pp. 355-396
    • Volkmann, R.A.1
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    • 0038106171 scopus 로고    scopus 로고
    • (d) Heathcock, C. H., Ed.; Pergamon: Oxford
    • For reviews see: (a) Bloch, R. Chem. Rev. 1998, 98, 1407-1438. (b) Enders, D.; Reinhold, U. Tetrahedron: Asymmetry 1997, 8, 1895-1946. (c) Volkmann, R. A. In Comprehensive Organic Synthesis; Schreiber, S. L., Ed.; Pergamon: Oxford, 1991; Vol. 1, pp. 355-396. (d) Kleinman, E. F.; Volkmann, R. A. In Comprehensive Organic Synthesis; Heathcock, C. H., Ed.; Pergamon: Oxford, 1991; Vol. 2, pp. 975-1006.
    • (1991) In Comprehensive Organic Synthesis , vol.2 , pp. 975-1006
    • Kleinman, E.F.1    Volkmann, R.A.2
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    • 0034143294 scopus 로고    scopus 로고
    • A lanthanaid triflate activated cycloaddition of silyl ynol ether to 4-methoxyphenyl imines has been reported by us
    • A lanthanaid triflate activated cycloaddition of silyl ynol ether to 4-methoxyphenyl imines has been reported by us: Shindo, M.; Oya, S.; Sato, Y.; Shishido, K. Heterocycles 2000, 52, 545-548.
    • (2000) Heterocycles , vol.52 , pp. 545-548
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    • 0030573985 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (1996) Tetrahedron Lett. , vol.41 , pp. 7357-7360
    • Ishitani, H.1    Kobayashi, S.2
  • 17
    • 0030788354 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (1997) J. Am. Chem. Soc. , vol.119 , pp. 7153-7154
    • Ishitani, H.1    Ueno, M.2    Kobayashi, S.3
  • 18
    • 0032484050 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (1998) Angew. Chem., Int. Ed. , vol.37 , pp. 3186-3188
    • Ishitani, H.1    Komiyama, S.2    Kobayashi, S.3
  • 19
    • 0032271640 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (1998) Chem. Lett. , pp. 1131-1132
    • Kobayashi, S.1    Hasegawa, Y.2    Ishitani, H.3
  • 20
    • 0032554058 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (1998) J. Am. Chem. Soc. , vol.120 , pp. 431-432
    • Kobayashi, S.1    Ishitani, H.2    Ueno, M.3
  • 21
    • 0032946766 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (1999) Synlett , pp. 545-546
    • Kobayashi, S.1    Busujima, T.2    Nagayama, S.3
  • 22
    • 0033548593 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (1999) Tetrahedron Lett. , vol.40 , pp. 2161-2164
    • Ishitani, H.1    Kitazawa, T.2    Kobayashi, S.3
  • 23
    • 0033546377 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (1999) J. Org. Chem. , vol.64 , pp. 4220-4221
    • Kobayashi, S.1    Kusakabe, K.2    Komiyama, S.3    Ishitani, H.4
  • 24
    • 0000186325 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (2000) Org. Lett. , vol.2 , pp. 1225-1227
    • Kobayashi, S.1    Kusakabe, K.2    Ishitani, H.3
  • 25
    • 0034624418 scopus 로고    scopus 로고
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (2000) J. Am. Chem. Soc. , vol.122 , pp. 762-766
    • Ishitani, H.1    Komiyama, S.2    Hasegawa, Y.3    Kobayashi, S.4
  • 26
    • 0033605814 scopus 로고    scopus 로고
    • See also
    • There have been many reports on stereocontrol of addition of organometallics to imines via chelation. Utilizing the N-2-hydroxyphenyl function, Kobayashi achieved high enantioselectivity and reaction acceleration in the asymmetric Mannich reaction and Strecker reaction: Ishitani, H.; Kobayashi, S. Tetrahedron Lett. 1996, 41, 7357-7360; Ishitani, H.; Ueno, M.; Kobayashi, S. J. Am. Chem. Soc. 1997, 119, 7153-7154; Ishitani, H.; Komiyama, S.; Kobayashi, S. Angew. Chem., Int. Ed. 1998, 37, 3186-3188; Kobayashi, S.; Hasegawa, Y.; Ishitani, H. Chem. Lett. 1998, 1131-1132; Kobayashi, S.; Ishitani, H.; Ueno, M. J. Am. Chem. Soc. 1998, 120, 431-432; Kobayashi, S.; Busujima, T.; Nagayama, S. Synlett 1999, 545-546; Ishitani, H.; Kitazawa, T.; Kobayashi, S. Tetrahedron Lett. 1999, 40, 2161-2164; Kobayashi, S.; Kusakabe, K.; Komiyama, S.; Ishitani, H. J. Org. Chem. 1999, 64, 4220-4221; Kobayashi, S.; Kusakabe, K.; Ishitani, H. Org. Lett. 2000, 2, 1225-1227; Ishitani, H.; Komiyama, S.; Hasegawa, Y.; Kobayashi, S. J. Am. Chem. Soc. 2000, 122, 762-766. See also: Adrian Jr., J. C.; Barkin, J. L.; Hassib, L. Tetrahedron Lett. 1999, 40, 2457-2460.
    • (1999) Tetrahedron Lett. , vol.40 , pp. 2457-2460
    • Adrian J.C., Jr.1    Barkin, J.L.2    Hassib, L.3
  • 27
    • 0001080997 scopus 로고    scopus 로고
    • Note added in proof: After submission of the revised manuscript, Yamamoto et al. reported the acceleration of addition of lithium ester enolates to N-2-methoxyphenyl aldimines
    • Note added in proof: After submission of the revised manuscript, Yamamoto et al. reported the acceleration of addition of lithium ester enolates to N-2-methoxyphenyl aldimines: Saito, S.; Hatanaka, K.; Yamamoto, H. Org. Lett. 2000, 2, 1891-1894.
    • (2000) Org. Lett. , vol.2 , pp. 1891-1894
    • Saito, S.1    Hatanaka, K.2    Yamamoto, H.3


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