메뉴 건너뛰기




Volumn 14, Issue 6, 2003, Pages 635-639

Enantioselective Michael addition reactions of malononitrile catalyzed by chiral Lewis acid and achiral amine catalysts

Author keywords

[No Author keywords available]

Indexed keywords

AMINE; LEWIS ACID; MALONONITRILE; OXAZOLIDINONE DERIVATIVE; PYRAZOLE DERIVATIVE;

EID: 0037459250     PISSN: 09574166     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0957-4166(03)00084-3     Document Type: Article
Times cited : (68)

References (44)
  • 6
    • 0000507716 scopus 로고
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (1988) J. Org. Chem. , vol.53 , pp. 4148-4149
    • Feringa, B.L.1    Pineschi, M.2    Arnold, L.K.3    Yokoyama, H.4    Hayasaka, T.5    Ebihara, K.6
  • 7
    • 0027980834 scopus 로고
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (1994) Tetrahedron: Asymmetry , vol.5 , pp. 1431-1432
    • Kumamoto, T.1    Aoki, S.2    Nakajima, M.3    Koga, K.4
  • 8
    • 0027993384 scopus 로고
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (1994) Tetrahedron Lett. , vol.35 , pp. 8233-8236
    • Yamaguchi, M.1    Shiraishi, T.2    Igarashi, Y.3    Hirama, M.4
  • 9
    • 0343967492 scopus 로고    scopus 로고
    • and references cited therein
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (1996) J. Org. Chem. , vol.61 , pp. 3520-3530
    • Yamaguchi, M.1    Shiraishi, T.2    Hirama, M.3
  • 10
    • 0041350014 scopus 로고    scopus 로고
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (1997) Synlett , pp. 119-120
    • Inagaki, K.1    Nozaki, K.2    Takaya, H.3
  • 11
    • 0030697086 scopus 로고    scopus 로고
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (1997) Tetrahedron Lett. , vol.38 , pp. 7745-7748
    • Alexakis, A.1    Vastra, J.2    Manganey, P.3
  • 12
    • 0030821778 scopus 로고    scopus 로고
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (1997) Tetrahedron: Asymmetry , vol.8 , pp. 3193-3196
    • Alexakis, A.1    Vastra, J.2    Burton, J.3    Manganey, P.4
  • 13
    • 0030680243 scopus 로고    scopus 로고
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (1997) Tetrahedron Lett. , vol.38 , pp. 7259-7262
    • Bako, P.1    Kiss, T.2    Take, L.3
  • 14
    • 0032554061 scopus 로고    scopus 로고
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (1998) J. Am. Chem. Soc. , vol.120 , pp. 441-442
    • Arai, T.1    Sasai, H.2    Yamaguchi, K.3    Shibasaki, M.4
  • 15
    • 0037174368 scopus 로고    scopus 로고
    • For the enantioselective Michael additions by donor activation, see: (a) Feringa, B. L.; Pineschi, M.; Arnold, L. K.; Yokoyama, H.; Hayasaka, T.; Ebihara, K. J. Org. Chem. 1988, 53, 4148-4149; (b) Kumamoto, T.; Aoki, S.; Nakajima, M.; Koga, K. Tetrahedron: Asymmetry 1994, 5, 1431-1432; (c) Yamaguchi, M.; Shiraishi, T.; Igarashi, Y.; Hirama, M. Tetrahedron Lett. 1994, 35, 8233-8236; (d) Yamaguchi, M.; Shiraishi, T.; Hirama, M. J. Org. Chem. 1996, 61, 3520-3530 and references cited therein; (e) Inagaki, K.; Nozaki, K.; Takaya, H. Synlett 1997, 119-120; (f) Alexakis, A.; Vastra, J.; Manganey, P. Tetrahedron Lett. 1997, 38, 7745-7748; (g) Alexakis, A.; Vastra, J.; Burton, J.; Manganey, P. Tetrahedron: Asymmetry 1997, 8, 3193-3196; (h) Bako, P.; Kiss, T.; Take, L. Tetrahedron Lett. 1997, 38, 7259-7262; (i) Arai, T.; Sasai, H.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 1998, 120, 441-442; (j) Hamashima, Y.; Hotta, D.; Sodeoka, M. J. Am. Chem. Soc. 2002, 124, 11240-11241.
    • (2002) J. Am. Chem. Soc. , vol.124 , pp. 11240-11241
    • Hamashima, Y.1    Hotta, D.2    Sodeoka, M.3
  • 16
    • 0034817259 scopus 로고    scopus 로고
    • and references cited therein
    • For enantioselective Michael additions of silyl enolates or ketene silyl acetals, see: (a) Kobayashi, S.; Suda, S.; Yamada, M.; Mukaiyama, T. Chem. Lett. 1994, 97-100 and references cited therein; (b) Bernardi, A.; Colombo, G.; Scolastico, C. Tetrahedron Lett. 1996, 37, 8921-8924; (c) Bernardi, A.; Karamfilova, K.; Sanguinetti, S.; Scolastico, C. Tetrahedron 1997, 53, 13009-13026; (d) Kitajima, H.; Katsuki, T. Synlett 1997, 568-570; (e) Evans, D. A.; Rovis, T.; Kozlowski, M. C.; Tedrow, J. S. J. Am. Chem. Soc. 1999, 121, 1994-1995; (f) Evans, D. A.; Willis, M. C.; Johnston, J. N. Org. Lett. 1999, 11, 865-868; (g) Evans, D. A.; Scheidt, K. A.; Johnston, J. N.; Willis, M. C. J. Am. Chem. Soc. 2001, 123, 4480-4491.
    • (1994) Chem. Lett. , pp. 97-100
    • Kobayashi, S.1    Suda, S.2    Yamada, M.3    Mukaiyama, T.4
  • 17
    • 0030566793 scopus 로고    scopus 로고
    • For enantioselective Michael additions of silyl enolates or ketene silyl acetals, see: (a) Kobayashi, S.; Suda, S.; Yamada, M.; Mukaiyama, T. Chem. Lett. 1994, 97-100 and references cited therein; (b) Bernardi, A.; Colombo, G.; Scolastico, C. Tetrahedron Lett. 1996, 37, 8921-8924; (c) Bernardi, A.; Karamfilova, K.; Sanguinetti, S.; Scolastico, C. Tetrahedron 1997, 53, 13009-13026; (d) Kitajima, H.; Katsuki, T. Synlett 1997, 568-570; (e) Evans, D. A.; Rovis, T.; Kozlowski, M. C.; Tedrow, J. S. J. Am. Chem. Soc. 1999, 121, 1994-1995; (f) Evans, D. A.; Willis, M. C.; Johnston, J. N. Org. Lett. 1999, 11, 865-868; (g) Evans, D. A.; Scheidt, K. A.; Johnston, J. N.; Willis, M. C. J. Am. Chem. Soc. 2001, 123, 4480-4491.
    • (1996) Tetrahedron Lett. , vol.37 , pp. 8921-8924
    • Bernardi, A.1    Colombo, G.2    Scolastico, C.3
  • 18
    • 0030768261 scopus 로고    scopus 로고
    • For enantioselective Michael additions of silyl enolates or ketene silyl acetals, see: (a) Kobayashi, S.; Suda, S.; Yamada, M.; Mukaiyama, T. Chem. Lett. 1994, 97-100 and references cited therein; (b) Bernardi, A.; Colombo, G.; Scolastico, C. Tetrahedron Lett. 1996, 37, 8921-8924; (c) Bernardi, A.; Karamfilova, K.; Sanguinetti, S.; Scolastico, C. Tetrahedron 1997, 53, 13009-13026; (d) Kitajima, H.; Katsuki, T. Synlett 1997, 568-570; (e) Evans, D. A.; Rovis, T.; Kozlowski, M. C.; Tedrow, J. S. J. Am. Chem. Soc. 1999, 121, 1994-1995; (f) Evans, D. A.; Willis, M. C.; Johnston, J. N. Org. Lett. 1999, 11, 865-868; (g) Evans, D. A.; Scheidt, K. A.; Johnston, J. N.; Willis, M. C. J. Am. Chem. Soc. 2001, 123, 4480-4491.
    • (1997) Tetrahedron , vol.53 , pp. 13009-13026
    • Bernardi, A.1    Karamfilova, K.2    Sanguinetti, S.3    Scolastico, C.4
  • 19
    • 0002691788 scopus 로고    scopus 로고
    • For enantioselective Michael additions of silyl enolates or ketene silyl acetals, see: (a) Kobayashi, S.; Suda, S.; Yamada, M.; Mukaiyama, T. Chem. Lett. 1994, 97-100 and references cited therein; (b) Bernardi, A.; Colombo, G.; Scolastico, C. Tetrahedron Lett. 1996, 37, 8921-8924; (c) Bernardi, A.; Karamfilova, K.; Sanguinetti, S.; Scolastico, C. Tetrahedron 1997, 53, 13009-13026; (d) Kitajima, H.; Katsuki, T. Synlett 1997, 568-570; (e) Evans, D. A.; Rovis, T.; Kozlowski, M. C.; Tedrow, J. S. J. Am. Chem. Soc. 1999, 121, 1994-1995; (f) Evans, D. A.; Willis, M. C.; Johnston, J. N. Org. Lett. 1999, 11, 865-868; (g) Evans, D. A.; Scheidt, K. A.; Johnston, J. N.; Willis, M. C. J. Am. Chem. Soc. 2001, 123, 4480-4491.
    • (1997) Synlett , pp. 568-570
    • Kitajima, H.1    Katsuki, T.2
  • 20
    • 0033541094 scopus 로고    scopus 로고
    • For enantioselective Michael additions of silyl enolates or ketene silyl acetals, see: (a) Kobayashi, S.; Suda, S.; Yamada, M.; Mukaiyama, T. Chem. Lett. 1994, 97-100 and references cited therein; (b) Bernardi, A.; Colombo, G.; Scolastico, C. Tetrahedron Lett. 1996, 37, 8921-8924; (c) Bernardi, A.; Karamfilova, K.; Sanguinetti, S.; Scolastico, C. Tetrahedron 1997, 53, 13009-13026; (d) Kitajima, H.; Katsuki, T. Synlett 1997, 568-570; (e) Evans, D. A.; Rovis, T.; Kozlowski, M. C.; Tedrow, J. S. J. Am. Chem. Soc. 1999, 121, 1994-1995; (f) Evans, D. A.; Willis, M. C.; Johnston, J. N. Org. Lett. 1999, 11, 865-868; (g) Evans, D. A.; Scheidt, K. A.; Johnston, J. N.; Willis, M. C. J. Am. Chem. Soc. 2001, 123, 4480-4491.
    • (1999) J. Am. Chem. Soc. , vol.121 , pp. 1994-1995
    • Evans, D.A.1    Rovis, T.2    Kozlowski, M.C.3    Tedrow, J.S.4
  • 21
    • 0033598250 scopus 로고    scopus 로고
    • For enantioselective Michael additions of silyl enolates or ketene silyl acetals, see: (a) Kobayashi, S.; Suda, S.; Yamada, M.; Mukaiyama, T. Chem. Lett. 1994, 97-100 and references cited therein; (b) Bernardi, A.; Colombo, G.; Scolastico, C. Tetrahedron Lett. 1996, 37, 8921-8924; (c) Bernardi, A.; Karamfilova, K.; Sanguinetti, S.; Scolastico, C. Tetrahedron 1997, 53, 13009-13026; (d) Kitajima, H.; Katsuki, T. Synlett 1997, 568-570; (e) Evans, D. A.; Rovis, T.; Kozlowski, M. C.; Tedrow, J. S. J. Am. Chem. Soc. 1999, 121, 1994-1995; (f) Evans, D. A.; Willis, M. C.; Johnston, J. N. Org. Lett. 1999, 11, 865-868; (g) Evans, D. A.; Scheidt, K. A.; Johnston, J. N.; Willis, M. C. J. Am. Chem. Soc. 2001, 123, 4480-4491.
    • (1999) Org. Lett. , vol.11 , pp. 865-868
    • Evans, D.A.1    Willis, M.C.2    Johnston, J.N.3
  • 22
    • 0034817259 scopus 로고    scopus 로고
    • For enantioselective Michael additions of silyl enolates or ketene silyl acetals, see: (a) Kobayashi, S.; Suda, S.; Yamada, M.; Mukaiyama, T. Chem. Lett. 1994, 97-100 and references cited therein; (b) Bernardi, A.; Colombo, G.; Scolastico, C. Tetrahedron Lett. 1996, 37, 8921-8924; (c) Bernardi, A.; Karamfilova, K.; Sanguinetti, S.; Scolastico, C. Tetrahedron 1997, 53, 13009-13026; (d) Kitajima, H.; Katsuki, T. Synlett 1997, 568-570; (e) Evans, D. A.; Rovis, T.; Kozlowski, M. C.; Tedrow, J. S. J. Am. Chem. Soc. 1999, 121, 1994-1995; (f) Evans, D. A.; Willis, M. C.; Johnston, J. N. Org. Lett. 1999, 11, 865-868; (g) Evans, D. A.; Scheidt, K. A.; Johnston, J. N.; Willis, M. C. J. Am. Chem. Soc. 2001, 123, 4480-4491.
    • (2001) J. Am. Chem. Soc. , vol.123 , pp. 4480-4491
    • Evans, D.A.1    Scheidt, K.A.2    Johnston, J.N.3    Willis, M.C.4
  • 39
    • 85031229318 scopus 로고    scopus 로고
    • 2 did not show any catalytic activity either.
    • 2 did not show any catalytic activity either.
  • 40
    • 85031229026 scopus 로고    scopus 로고
    • Bulky amines such as TMP should be less coordinating to the metallic center of R,R-DBFOX/Ph complexes so that deactivation of the Lewis acid catalyst is relatively avoided.
    • Bulky amines such as TMP should be less coordinating to the metallic center of R,R-DBFOX/Ph complexes so that deactivation of the Lewis acid catalyst is relatively avoided.
  • 41
    • 85031234266 scopus 로고    scopus 로고
    • 8b
    • 8b.
  • 42
    • 85031211543 scopus 로고    scopus 로고
    • When the catalytic amounts of amines were reduced, both catalytic activity and enantioselectivities were much decreased.
    • When the catalytic amounts of amines were reduced, both catalytic activity and enantioselectivities were much decreased.
  • 43
    • 85031210789 scopus 로고    scopus 로고
    • Sometimes, when reactions are performed under a lower temperature such as -40 to -78°C, unexpectedly low enantioselectivities result. The reason has remained unsolved.
    • Sometimes, when reactions are performed under a lower temperature such as -40 to -78°C, unexpectedly low enantioselectivities result. The reason has remained unsolved.
  • 44
    • 85031232049 scopus 로고    scopus 로고
    • unpublished results
    • Such intramolecular protonation has been involved in an enantioselective sequence of Michael addition/cyclization reactions of cyclic 1,3-diketones producing enol lactones under the double catalytic activation conditions. See: Ito, K.; Kanemasa, S., unpublished results.
    • Ito, K.1    Kanemasa, S.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.