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Volumn 55, Issue 29, 1999, Pages 8857-8867

Direct catalytic asymmetric Mannich reaction of unmodified ketones: Cooperative catalysis of an AlLibis(binaphthoxide) complex and La(OTf)3·nH2O

Author keywords

[No Author keywords available]

Indexed keywords

3 (DIETHYLAMINO) 2 METHYL 1 PHENYL 1 PROPANONE; KETONE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 0033575409     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4020(99)00449-4     Document Type: Conference Paper
Times cited : (89)

References (38)
  • 14
    • 0031849225 scopus 로고    scopus 로고
    • b) Gröger, H.; Vogl, E. M.; Shibasaki, M. Chem. Eur. J. 1998, 4, 1137-1141. Recently we developed a direct catalytic asymmetric aldol reactions promoted by a novel barium complex, see: Yamada, Y. M. A.; Shibasaki, M. Tetrahedron Lett. 1998, 39, 5561-5564.
    • (1998) Chem. Eur. J. , vol.4 , pp. 1137-1141
    • Gröger, H.1    Vogl, E.M.2    Shibasaki, M.3
  • 15
    • 0032581554 scopus 로고    scopus 로고
    • b) Gröger, H.; Vogl, E. M.; Shibasaki, M. Chem. Eur. J. 1998, 4, 1137-1141. Recently we developed a direct catalytic asymmetric aldol reactions promoted by a novel barium complex, see: Yamada, Y. M. A.; Shibasaki, M. Tetrahedron Lett. 1998, 39, 5561-5564.
    • (1998) Tetrahedron Lett. , vol.39 , pp. 5561-5564
    • Yamada, Y.M.A.1    Shibasaki, M.2
  • 20
    • 85069277595 scopus 로고    scopus 로고
    • The reaction in THF afforded 4 with lower ee than that in toluene
    • The reaction in THF afforded 4 with lower ee than that in toluene.
  • 22
    • 85069283893 scopus 로고    scopus 로고
    • 4, and following separation of the resultant diastereomers
    • 4, and following separation of the resultant diastereomers.
  • 36
    • 85069282726 scopus 로고    scopus 로고
    • Although the absolute configurations of 11-13 have not been determined at the present time, we suggest (S)-configuration similar to compound 14 because of analogies of their molecular modeling studies for the transition state
    • Although the absolute configurations of 11-13 have not been determined at the present time, we suggest (S)-configuration similar to compound 14 because of analogies of their molecular modeling studies for the transition state.
  • 37
    • 85069279630 scopus 로고    scopus 로고
    • All of those Mannich bases showed a tendency to racemize during colomn choromatograpy (silica gel or alumina)
    • All of those Mannich bases showed a tendency to racemize during colomn choromatograpy (silica gel or alumina).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.