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Volumn 17, Issue 1, 2015, Pages 106-109

Organocatalytic Enantioselective Addition of Thiols to Ketimines Derived from Isatins

Author keywords

[No Author keywords available]

Indexed keywords

CINCHONA ALKALOID; IMINE; ISATIN; KETIMINE; NITRILE; THIOL DERIVATIVE;

EID: 84924339043     PISSN: 15237060     EISSN: 15237052     Source Type: Journal    
DOI: 10.1021/ol503309s     Document Type: Article
Times cited : (74)

References (58)
  • 43
    • 84880726669 scopus 로고    scopus 로고
    • Sha and Wu's group reported the reaction of ketimines with alcohols to give chiral N, O -acetals with moderate enantioselectivity; see
    • Sha and Wu's group reported the reaction of ketimines with alcohols to give chiral N, O -acetals with moderate enantioselectivity; see: Li, T.-Z.; Wang, X.-B.; Sha, F.; Wu, X.-Y. Tetrahedron 2013, 69, 7314
    • (2013) Tetrahedron , vol.69 , pp. 7314
    • Li, T.-Z.1    Wang, X.-B.2    Sha, F.3    Wu, X.-Y.4
  • 53
    • 84937618864 scopus 로고    scopus 로고
    • note
    • We also examined the reaction using various cinchona alkaloids, such as quinine, quinidine, cinchonine, and cinchonidine; however, the reaction afforded product 4 with lower enantioselectivity than when 3c was used.
  • 54
    • 84937618865 scopus 로고    scopus 로고
    • note
    • The reaction using 10 mol % of TMSOH cannot improve the enantioselectivity of the product.
  • 55
    • 84937618866 scopus 로고    scopus 로고
    • note
    • The reaction of nonprotected isatin ketimine with 2a using 3c also afforded the product with high enantioselectivity but in low yield (27%, 86% ee).
  • 56
    • 84937618867 scopus 로고    scopus 로고
    • note
    • The reaction of 1d with benzenethiol also gave the product, but it was not a stable compound.
  • 57
    • 84937618868 scopus 로고    scopus 로고
    • note
    • We also examined the transformation of products such as removal of the Adoc group or the cyclization reaction between ester groups with amides, but these compounds are not so stable.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.