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Volumn 130, Issue 49, 2008, Pages 16484-16485

Self-assembled dinuclear cobalt(II)-salen catalyst through hydrogen-bonding and its application to enantioselective nitro-aldol (Henry) reaction

Author keywords

[No Author keywords available]

Indexed keywords

ALDEHYDE; COBALT COMPLEX; HYDROGEN; NICKEL COMPLEX; NITROGEN;

EID: 57549112909     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja807221s     Document Type: Article
Times cited : (172)

References (42)
  • 2
    • 5344224096 scopus 로고    scopus 로고
    • Selected examples on chiral bimetallic catalysts: Review: a
    • Review: (a) Ma, J.-A.; Cahard, D. Angew. Chem., Int. Ed. 2004, 43, 4566. Selected examples on chiral bimetallic catalysts:
    • (2004) Angew. Chem., Int. Ed , vol.43 , pp. 4566
    • Ma, J.-A.1    Cahard, D.2
  • 18
    • 1242289460 scopus 로고    scopus 로고
    • Selected examples of supramolecular catalysts using hydrogen-bonding interactions: (a) Ohshima, S.; Tamura, N.; Nabeshima, T.; Yano, Y. Chem. Commun. 1993, 712.
    • Selected examples of supramolecular catalysts using hydrogen-bonding interactions: (a) Ohshima, S.; Tamura, N.; Nabeshima, T.; Yano, Y. Chem. Commun. 1993, 712.
  • 28
    • 0000138939 scopus 로고    scopus 로고
    • Symmetrical salens are expected to form oligomeric or polymeric aggregates due to their arrays of hydrogen-bonding donors and acceptors. See: Ducharme, Y, Wuest, J. D. J. Org. Chem. 1988, 53, 5787
    • Symmetrical salens are expected to form oligomeric or polymeric aggregates due to their arrays of hydrogen-bonding donors and acceptors. See: Ducharme, Y.; Wuest, J. D. J. Org. Chem. 1988, 53, 5787.
  • 29
    • 57549084127 scopus 로고    scopus 로고
    • See Supporting Information for experimental details
    • See Supporting Information for experimental details.
  • 35
    • 57549115658 scopus 로고    scopus 로고
    • The oxidation state of the catalytically active Co species is not clear at this point. More detailed mechanistic study is needed. See ref 3c
    • The oxidation state of the catalytically active Co species is not clear at this point. More detailed mechanistic study is needed. See ref 3c.
  • 36
    • 57549087806 scopus 로고    scopus 로고
    • The formation of a strong heterodimeric species (1b+1c) with two symmetrical structures is more challenging, because more precise control of the tether lengths and the torsion angle is necessary.
    • The formation of a strong heterodimeric species (1b+1c) with two symmetrical structures is more challenging, because more precise control of the tether lengths and the torsion angle is necessary.
  • 37
    • 0030922091 scopus 로고    scopus 로고
    • 1H NMR spectroscopy to determine the dimerization constant of strong hydrogen-bonding dimers: (a) Wash, P. L.; Maverick, E.; Chiefari, J.; Lightner, D. A. J. Am. Chem. Soc. 1997, 119, 3802.
    • 1H NMR spectroscopy to determine the dimerization constant of strong hydrogen-bonding dimers: (a) Wash, P. L.; Maverick, E.; Chiefari, J.; Lightner, D. A. J. Am. Chem. Soc. 1997, 119, 3802.
  • 40
    • 57549101445 scopus 로고    scopus 로고
    • The NH signal of 2-pyridone was not observed due to the peak broadening in this solvent system.
    • The NH signal of 2-pyridone was not observed due to the peak broadening in this solvent system.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.