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Volumn 352, Issue 13, 2010, Pages 2171-2176

Simple chiral diaminobinaphthyl dilithium salts for intramolecular catalytic asymmetric hydroamination of amino-1,3-dienes

Author keywords

3 dienes; Amino l; Asymmetric catalysis; Hydroamination; Lithium; Nitrogen heterocycles

Indexed keywords


EID: 77956926277     PISSN: 16154150     EISSN: 16154169     Source Type: Journal    
DOI: 10.1002/adsc.201000302     Document Type: Article
Times cited : (33)

References (49)
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    • Such a procedure was efficiently used for a key step in the industrial synthesis of menthol via the Tagasako process, see: a) K. Takabe, T. Katagiri, J. Tanaka, Bull. Chem. Soc. Jpn. 1973, 46, 222-225;
    • (1973) Bull. Chem. Soc. Jpn. , vol.46 , pp. 222-225
    • Takabe, K.1    Katagiri, T.2    Tanaka, J.3
  • 21
  • 35
    • 77956895895 scopus 로고    scopus 로고
    • Lanthanide-catalysed enantioselective intramolecular hydroamination of aminodienes has been reported up to 71% ee (for the hydrogenated products)
    • Lanthanide-catalysed enantioselective intramolecular hydroamination of aminodienes has been reported up to 71% ee (for the hydrogenated products), see:
  • 39
    • 77956907991 scopus 로고    scopus 로고
    • 1H NMR spectroscopy
    • 1H NMR spectroscopy.
  • 40
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    • 181
    • [181
  • 41
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    • Due to the very short reaction time, it was technically difficult to precisely measure the reaction time
    • Due to the very short reaction time, it was technically difficult to precisely measure the reaction time.
  • 42
    • 77956926428 scopus 로고    scopus 로고
    • 1H NMR spectroscopy
    • 1H NMR spectroscopy.
  • 43
    • 63749118934 scopus 로고    scopus 로고
    • For a recent review on structure, reactivity and degrees of aggregation of organolithium compounds, see: V. H. Geesner, C. Däschlein, C. Strohmann, Chem. Eur. J. 2009, 15, 3320-3334.
    • (2009) Chem. Eur. J. , vol.15 , pp. 3320-3334
    • Geesner, V.H.1    Däschlein, C.2    Strohmann, C.3
  • 44
    • 77956910047 scopus 로고    scopus 로고
    • 1 was also an active catalyst for the enantioselective hydroamination of primary amines tethered to monosubstituted double bond, affording however the cyclised products with a lower level of enantioselectivity. For instance, under the catalytic conditions employed for substrate la, 3-methyl-2-azaspiro[4,5]decane was produced in 12% enantiomeric excess with a total conversion of the substrate in 4 h
    • 1 was also an active catalyst for the enantioselective hydroamination of primary amines tethered to monosubstituted double bond, affording however the cyclised products with a lower level of enantioselectivity. For instance, under the catalytic conditions employed for substrate la, 3-methyl-2-azaspiro[4,5]decane was produced in 12% enantiomeric excess with a total conversion of the substrate in 4 h.
  • 45
    • 77956892171 scopus 로고    scopus 로고
    • Attempts to directly observe a catalytic activity with these isolated racemic crystals were unsuccessful. Nevertheless, the addition of a catalytic amount of a MeLi solution to the so-obtained reaction media could restore similar activity and diastereoselectivity as those obtained with the lithium salts generated in situ under standard conditions (and different ones than those observed with MeLi alone)
    • Attempts to directly observe a catalytic activity with these isolated racemic crystals were unsuccessful. Nevertheless, the addition of a catalytic amount of a MeLi solution to the so-obtained reaction media could restore similar activity and diastereoselectivity as those obtained with the lithium salts generated in situ under standard conditions (and different ones than those observed with MeLi alone).
  • 47
    • 77956945191 scopus 로고    scopus 로고
    • CCDC 769219 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via
    • b) CCDC 769219 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac. uk/dataj-equest/cif.
  • 48
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    • [15], respectively
    • [15], respectively.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.