메뉴 건너뛰기




Volumn 68, Issue 11, 2003, Pages 4302-4314

Palladium-catalyzed Suzuki-Miyaura cross-coupling reactions of potassium aryl- and heteroaryltrifluoroborates

Author keywords

[No Author keywords available]

Indexed keywords

CROSS COUPLING REACTIONS;

EID: 0038362703     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo0342368     Document Type: Article
Times cited : (419)

References (85)
  • 3
    • 0038432792 scopus 로고    scopus 로고
    • Cross-coupling reactions. A practical guide
    • Miyaura N., Vol. Ed.; Springer-Verlag: Berlin, Germany
    • (c) Cross-Coupling Reactions. A Practical Guide. In Topics in Current Chemistry; Miyaura, N., Vol. Ed.; Springer-Verlag: Berlin, Germany, 2002; Vol. 219.
    • (2002) Topics in Current Chemistry , vol.219
  • 8
    • 0001786881 scopus 로고    scopus 로고
    • Diederich, F., Stang, P. J., Eds.; VCH: Weinheim, Germany
    • (c) Suzuki, A. In Metal-Catalyzed Cross-Coupling Reactions; Diederich, F., Stang, P. J., Eds.; VCH: Weinheim, Germany, 1998; pp 49-97.
    • (1998) Metal-Catalyzed Cross-Coupling Reactions , pp. 49-97
    • Suzuki, A.1
  • 37
    • 0001452020 scopus 로고    scopus 로고
    • and references therein
    • (d) Uozumi, Y.; Nakai, Y. Org. Lett. 2002, 4, 2997-3000 and references therein.
    • (2002) Org. Lett. , vol.4 , pp. 2997-3000
    • Uozumi, Y.1    Nakai, Y.2
  • 58
    • 0038432790 scopus 로고    scopus 로고
    • note
    • The reaction between the corresponding diazonium salt and phenyltrifluoroborate was performed under ligandless conditions with similar results. See ref 13a.
  • 59
    • 0034614046 scopus 로고    scopus 로고
    • Ligands containing amine moieties have proved to provide active catalysts for Suzuki couplings when a phosphine group is also present in the molecule: Yin, J.; Buchwald, S. L. J. Am. Chem. Soc. 2000, 122, 12051-12052. Other N-containing ligands, for example, bis-(pyrimidyl)-based palladium complexes, do not show a high efficiency in Suzuki couplings: Buchmeiser, M. R.; Schareina, T.; Kempe, R.; Wurst, K. J. Organomet. Chem. 2001, 634, 39-46.
    • (2000) J. Am. Chem. Soc. , vol.122 , pp. 12051-12052
    • Yin, J.1    Buchwald, S.L.2
  • 60
    • 0002598702 scopus 로고    scopus 로고
    • Ligands containing amine moieties have proved to provide active catalysts for Suzuki couplings when a phosphine group is also present in the molecule: Yin, J.; Buchwald, S. L. J. Am. Chem. Soc. 2000, 122, 12051-12052. Other N-containing ligands, for example, bis-(pyrimidyl)-based palladium complexes, do not show a high efficiency in Suzuki couplings: Buchmeiser, M. R.; Schareina, T.; Kempe, R.; Wurst, K. J. Organomet. Chem. 2001, 634, 39-46.
    • (2001) J. Organomet. Chem. , vol.634 , pp. 39-46
    • Buchmeiser, M.R.1    Schareina, T.2    Kempe, R.3    Wurst, K.4
  • 61
    • 0038770726 scopus 로고    scopus 로고
    • note
    • 4NBr to produce quantitative yields. See ref 5f.
  • 63
    • 0037756311 scopus 로고    scopus 로고
    • note
    • 2 have been used to perform the homocoupling of both electron-poor and electron-rich arylboronic acids. See ref 11.
  • 70
    • 0035855366 scopus 로고    scopus 로고
    • It has been shown that 3-bromothiophene requires special ligands to afford good yields of coupling products. Feuerstein, M.; Doucet, H.; Santelli, M. Tetrahedron Lett. 2001, 42, 5659-5662.
    • (2001) Tetrahedron Lett. , vol.42 , pp. 5659-5662
    • Feuerstein, M.1    Doucet, H.2    Santelli, M.3
  • 74
    • 0038770725 scopus 로고    scopus 로고
    • note
    • The cross-coupling and homocoupling products are highly sensitive to light and sublime at room temperature, accounting for the low recovery of product.
  • 76
    • 0000500380 scopus 로고    scopus 로고
    • Trichloropyrimidine is known to undergo nucleophilic substitution by phenolate ions. Delia, T. J.; Nagarajan, A. J. Heterocycl. Chem. 1998, 35, 269-273. Whether the palladium catalyst plays a role in favoring this reaction under our conditions is not known.
    • (1998) J. Heterocycl. Chem. , vol.35 , pp. 269-273
    • Delia, T.J.1    Nagarajan, A.2
  • 77
    • 0038094013 scopus 로고    scopus 로고
    • note
    • Several byproducts arising from substitution of the chlorine atoms by ethoxy groups and/or coupling with the aryltrifluoroborates were detected by GC-MS analysis, in trace levels, which accounts for the conversion of the remaining 20-30% of halide 2ac, for entries 2-4, Table 9.
  • 80
    • 33845470896 scopus 로고
    • Under these conditions, the reactions with the more electron deficient methyl 5-bromonicotinate afford high yields of products after 2-6 h. (a) Thompson, W. J.; Gaudino, J.J. Org. Chem. 1984, 49, 5237-5243. (b) Thompson, W. J.; Jones, J. H.; Lyle, P. A.; Thies, J. E. J. Org. Chem. 1988, 53, 2052-2055.
    • (1984) J. Org. Chem. , vol.49 , pp. 5237-5243
    • Thompson, W.J.1    Gaudino, J.2
  • 81
    • 0001223074 scopus 로고
    • Under these conditions, the reactions with the more electron deficient methyl 5-bromonicotinate afford high yields of products after 2-6 h. (a) Thompson, W. J.; Gaudino, J.J. Org. Chem. 1984, 49, 5237-5243. (b) Thompson, W. J.; Jones, J. H.; Lyle, P. A.; Thies, J. E. J. Org. Chem. 1988, 53, 2052-2055.
    • (1988) J. Org. Chem. , vol.53 , pp. 2052-2055
    • Thompson, W.J.1    Jones, J.H.2    Lyle, P.A.3    Thies, J.E.4
  • 83
    • 0037756307 scopus 로고    scopus 로고
    • note
    • 3, and then allowed to warm to room temperature overnight. The solvent was evaporated, and volatile impurities were removed as an azeotrope with dry MeOH.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.