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Volumn 76, Issue 5, 2011, Pages 1398-1408

Chiral N-heterocyclic carbene-copper(I)-catalyzed asymmetric allylic arylation of aliphatic allylic bromides: Steric and electronic effects on γ-selectivity

Author keywords

[No Author keywords available]

Indexed keywords

ARYL GROUP; ARYLATIONS; CARBENE LIGANDS; CHIRAL N-HETEROCYCLIC CARBENES; ELECTRON DEFICIENCY; ELECTRON-DEFICIENT; ELECTRONIC EFFECTS; GRIGNARD REAGENT; REDUCTIVE ELIMINATION; STERIC HINDRANCES;

EID: 79952141058     PISSN: 00223263     EISSN: 15206904     Source Type: Journal    
DOI: 10.1021/jo102386s     Document Type: Article
Times cited : (51)

References (56)
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    • recent reviews in Cu-catalyzed asymmetric allylic substitution:;;;;,-2823
    • Recent reviews in Cu-catalyzed asymmetric allylic substitution: Alexakis, A.; Bäckvall, J. E.; Krause, N.; Pàmies, O.; Diéguez, M. Chem. Rev. 2008, 108, 2796-2823
    • (2008) Chem. Rev. , vol.108 , pp. 2796
    • Alexakis, A.1    Bäckvall, J.E.2    Krause, N.3    Pàmies, O.4    Diéguez, M.5
  • 11
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    • Copper-mediated γ-selective allylic substitution using directing leaving groups:;,-2951
    • Copper-mediated γ-selective allylic substitution using directing leaving groups: Breit, B.; Schmidt, Y. Chem. Rev. 2008, 108, 2928-2951
    • (2008) Chem. Rev. , vol.108 , pp. 2928
    • Breit, B.1    Schmidt, Y.2
  • 22
    • 34548183315 scopus 로고    scopus 로고
    • Ir-catalyzed AAAr with arylzinc reagents in high enantioselectivity but moderate regioselectivity:;;;,-3395
    • Ir-catalyzed AAAr with arylzinc reagents in high enantioselectivity but moderate regioselectivity: Alexakis, A.; El Hajjaji, S.; Polet, D.; Rathgeb, X. Org. Lett. 2007, 9, 3393-3395
    • (2007) Org. Lett. , vol.9 , pp. 3393
    • Alexakis, A.1    El Hajjaji, S.2    Polet, D.3    Rathgeb, X.4
  • 28
    • 3042577485 scopus 로고    scopus 로고
    • Cu-catalyzed AAA using monodentate NHC and alkyl Grignard reagents:;;;;,-5588 See also ref 6c: bidentate NHC and dialkylzincs.;;;; J. Am. Chem. Soc. 2004, 126, 11130-11131
    • Cu-catalyzed AAA using monodentate NHC and alkyl Grignard reagents: Tominaga, S.; Oi, Y.; Kato, T.; An, D. K.; Okamoto, S. Tetrahedron Lett. 2004, 45, 5585-5588 See also ref 6c: bidentate NHC and dialkylzincs. Larsen, A. O.; Leu, W.; Oberhuber, C. N.; Campbell, J. E.; Hoveyda, A. H. J. Am. Chem. Soc. 2004, 126, 11130-11131
    • (2004) Tetrahedron Lett. , vol.45 , pp. 5585
    • Tominaga, S.1    Oi, Y.2    Kato, T.3    An, D.K.4    Okamoto, S.5    Larsen, A.O.6    Leu, W.7    Oberhuber, C.N.8    Campbell, J.E.9    Hoveyda, A.H.10
  • 30
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    • Bidentate NHC and vinylaluminums; see ref 9
    • Bidentate NHC and vinylaluminums; see ref 9.
  • 31
    • 79952145383 scopus 로고    scopus 로고
    • Cu-catalyzed AAAr of vinylsilane substrates using bidentate NHC and diarylzincs, see ref 7
    • Cu-catalyzed AAAr of vinylsilane substrates using bidentate NHC and diarylzincs, see ref 7.
  • 32
    • 77951683946 scopus 로고    scopus 로고
    • Cu-free AAA using an NHC and alkyl Grignard reagents
    • Cu-free AAA using an NHC and alkyl Grignard reagents: Jackowski, O.; Alexakis, A. Angew. Chem., Int. Ed. 2010, 49, 3346-3350
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    • Jackowski, O.1    Alexakis, A.2
  • 47
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    • Evaluation of the NHCs using the in situ -generated NHC-CuTC can be justified because the reaction with the in situ -generated CuTC analogues of 1a and 1b gave almost the same results (97% yield, 88% ee, γ/α 67:33 and 82% yield, 77% ee, γ/α 90:10, respectively) as those of 1a and 1b shown in Table 1, entries 1 and 2.
    • Evaluation of the NHCs using the in situ -generated NHC-CuTC can be justified because the reaction with the in situ -generated CuTC analogues of 1a and 1b gave almost the same results (97% yield, 88% ee, γ/α 67:33 and 82% yield, 77% ee, γ/α 90:10, respectively) as those of 1a and 1b shown in Table 1, entries 1 and 2.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.