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Volumn , Issue 30, 2008, Pages 3552-3554

Convenient method for the rapid generation of highly active and enantioselective yttrium catalysts for asymmetric hydroamination

Author keywords

[No Author keywords available]

Indexed keywords

ALKENE DERIVATIVE; LITHIUM DERIVATIVE; YTTRIUM;

EID: 47949118214     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/b804745f     Document Type: Article
Times cited : (53)

References (41)
  • 36
    • 38949090658 scopus 로고    scopus 로고
    • For examples of in situ generated chiral catalysts using tris(organo or amido) rare-earth precursors for AIH: see refs. 5c,f,g,k This sequential metathetic route was also not suitable for the preparation of chiral diamido alkylyttrium complexes, see ref. 7
    • Z. Liu J. F. Hartwig J. Am. Chem. Soc. 2008 130 1570
    • (2008) J. Am. Chem. Soc. , vol.130 , pp. 1570
    • Liu, Z.1    Hartwig, J.F.2
  • 37
    • 47949084397 scopus 로고    scopus 로고
    • 3 was chosen for its tendency to afford stable neutral alkyl complexes. For examples of isolated chiral neutral bis(amido) alkyl yttrium bearing a methyl, ethyl or 1-hexyl group, see:
    • Indeed, all lithium salts mentioned above were prepared by deprotonation of the related amine or diamine with n-BuLi in an individual reaction
  • 38
    • 0000187674 scopus 로고    scopus 로고
    • For n-BuLi-catalysed intramolecular hydroamination of unactivated olefins:
    • T. I. Gountchev T. D. Tilley Organometallics 1999 18 2896
    • (1999) Organometallics , vol.18 , pp. 2896
    • Gountchev, T.I.1    Tilley, T.D.2
  • 41
    • 0036625219 scopus 로고    scopus 로고
    • 3 and ligand in THF was chosen as the standard procedure For typical chemical shifts of methylene protons bound to yttrium, see ref. 14 No trace of yttrium amide ate complex bearing two chiral ligands per yttrium as previously described was observed in the spectrum6d For examples of the influence of THF or thiophene on the preparation of rare-earth metal catalysts for AIH, see, respectively refs. 5k and g
    • M. Shibasaki N. Yoshikawa Chem. Rev. 2002 102 2187
    • (2002) Chem. Rev. , vol.102 , pp. 2187
    • Shibasaki, M.1    Yoshikawa, N.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.