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Volumn 130, Issue 7, 2008, Pages 2158-2159

Enantioselective direct amination of α-cyanoacetates catalyzed by bifunctional chiral Ru and Ir amido complexes

Author keywords

[No Author keywords available]

Indexed keywords

ACETIC ACID DERIVATIVE; AMIDE; IRIDIUM; NITRILE; RUTHENIUM COMPLEX;

EID: 39649125196     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja710273s     Document Type: Article
Times cited : (78)

References (40)
  • 1
    • 0030820620 scopus 로고    scopus 로고
    • Examples of C-N bond formation using azodicarboxylates as nitrogen sources: (a) Evans, D. A.; Nelson, S. G. J. Am. Chem. Soc. 1997, 119, 6452-6453.
    • Examples of C-N bond formation using azodicarboxylates as nitrogen sources: (a) Evans, D. A.; Nelson, S. G. J. Am. Chem. Soc. 1997, 119, 6452-6453.
  • 31
    • 39649123372 scopus 로고    scopus 로고
    • An increase in the S/C to 500 caused a serious decrease in the ee value of the product possibly due to the substrate inhibition as observed in CH 3-CN
    • 3-CN.
  • 32
    • 39649087671 scopus 로고    scopus 로고
    • 13C NMR and DEPT spectra at -50°C showed that the deprotonated anionic carbon resonates at δ 58.6 in 6b (anionic carbon for minor product 6a had not been observed), whereas the metal-bonded nitrile carbon atom appears between δ 135.2 and 140.2 in 6b and δ 137.1 and 139.2 in 6a, which is notably down-field shifted compared to free 4 (δ 116.0).
    • 13C NMR and DEPT spectra at -50°C showed that the deprotonated anionic carbon resonates at δ 58.6 in 6b (anionic carbon for minor product 6a had not been observed), whereas the metal-bonded nitrile carbon atom appears between δ 135.2 and 140.2 in 6b and δ 137.1 and 139.2 in 6a, which is notably down-field shifted compared to free 4 (δ 116.0).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.