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Volumn 48, Issue 31, 2009, Pages 5701-5704

Enantioselective organocatalytic domino oxa-michael/aldol/ hemiacetalization: Synthesis of polysubstituted furofuranes containing four stereocenters

Author keywords

Asymmetric catalysis; Domino reactions; Heterocycles; Organocatalysis; Oxa Michael reaction

Indexed keywords

ASYMMETRIC CATALYSIS; DOMINO REACTIONS; HETEROCYCLES; ORGANOCATALYSIS; OXA-MICHAEL REACTION;

EID: 70349897776     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200901333     Document Type: Article
Times cited : (99)

References (49)
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    • For some selected reviews, see: a) N. Ismabery, R. Lavila, Chem. Eur. J. 2008, 14, 8444;
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    • (2005) Multicomponent Reactions
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    • 44949242294 scopus 로고    scopus 로고
    • For general reviews on organocatalytic cascade reactions, see: c
    • For general reviews on organocatalytic cascade reactions, see: c) X. Yu, W. Wang, Org. Biomol. Chem. 2008, 6, 2037;
    • (2008) Org. Biomol. Chem , vol.6 , pp. 2037
    • Yu, X.1    Wang, W.2
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    • 55249111616 scopus 로고    scopus 로고
    • For some selected general reviews on asymmetric organocatalysis, see: a
    • For some selected general reviews on asymmetric organocatalysis, see: a) P. Melchiorre, M. Marigo, A. Carlone, G. Bartoli, Angew. Chem. 2008, 120, 6232;
    • (2008) Angew. Chem , vol.120 , pp. 6232
    • Melchiorre, P.1    Marigo, M.2    Carlone, A.3    Bartoli, G.4
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    • special issue on organocatalysis Chem. Rev. 2007, 107(12);
    • c) special issue on organocatalysis Chem. Rev. 2007, 107(12);
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    • a values of 16 and 17: D. A. Alonso, S. Kitagaki, N. Utsumi, C. F. Barbas III, Angew. Chem. 2008, 120, 4664;
    • a values of 16 and 17: D. A. Alonso, S. Kitagaki, N. Utsumi, C. F. Barbas III, Angew. Chem. 2008, 120, 4664;
  • 45
    • 62249110220 scopus 로고    scopus 로고
    • For an earlier example of an attempted amine-catalyzed conjugate addition of alcohols to enals furnishing low levels of enantioselection, see: a D. Díez, M. G. Nuñez, A. Benéitez, R. F. Moro, I. S. Marcos, P. Basabe, H. B. Broughton, J. G. Urones, Synlett 2009, 390;
    • For an earlier example of an attempted amine-catalyzed conjugate addition of alcohols to enals furnishing low levels of enantioselection, see: a) D. Díez, M. G. Nuñez, A. Benéitez, R. F. Moro, I. S. Marcos, P. Basabe, H. B. Broughton, J. G. Urones, Synlett 2009, 390;
  • 47
    • 70349900468 scopus 로고    scopus 로고
    • The absolute configuration of the compounds 4 was assigned by analogy from the X-ray analysis of the corresponding O-acetyl p-chlorobenzoyl derivative of 4 b (see the Supporting Information). CCDC 723339 contains the supplementary crystallo-graphic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data-request/cif.
    • The absolute configuration of the compounds 4 was assigned by analogy from the X-ray analysis of the corresponding O-acetyl p-chlorobenzoyl derivative of 4 b (see the Supporting Information). CCDC 723339 contains the supplementary crystallo-graphic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data-request/cif.
  • 48
    • 70349902520 scopus 로고    scopus 로고
    • We also think that it is the dihydroxyacetone dimer 2 itself which acts as the oxygen nucleophile because reactions in solvents having the ability to retrodimerize 2, such as MeOH or THF, proceeded with very low conversions.
    • We also think that it is the dihydroxyacetone dimer 2 itself which acts as the oxygen nucleophile because reactions in solvents having the ability to retrodimerize 2, such as MeOH or THF, proceeded with very low conversions.
  • 49
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    • The reaction of crotonaldehyde with hydroxyacetophenone under the optimized reaction conditions did not furnish any product; only unmodified starting materials were recovered
    • The reaction of crotonaldehyde with hydroxyacetophenone under the optimized reaction conditions did not furnish any product; only unmodified starting materials were recovered.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.