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Volumn 12, Issue 2, 2010, Pages 264-267

Highly enantioselective titanium-catalyzed cyanation of imines at room temperature

Author keywords

[No Author keywords available]

Indexed keywords

IMINE; NITRILE; ORGANOMETALLIC COMPOUND; TITANIUM;

EID: 74949115001     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol902540h     Document Type: Article
Times cited : (60)

References (53)
  • 2
  • 29
    • 0034704642 scopus 로고    scopus 로고
    • ) For organo-catalyzed cyanation of ketoimines, see: (a) Vachal, P.; Jacobsen, E. N. Org. Lett. 2000, 2, 867.
    • (2000) Org. Lett. , vol.2 , pp. 867
    • Vachal, P.1    Jacobsen, E.N.2
  • 39
    • 74949096301 scopus 로고    scopus 로고
    • Part of the results were presented as a poster at the 227 ACS national meeting held at Salt Lake City, March 22-26, 2009
    • (a) Part of the results were presented as a poster at the 227 ACS national meeting held at Salt Lake City, March 22-26, 2009.
  • 41
    • 74949093612 scopus 로고    scopus 로고
    • The active chiral catalyst was prepared by complexing the titanium precursor with, the ligand for 5-30 min with stirring in toluene
    • The active chiral catalyst was prepared by complexing the titanium precursor with, the ligand for 5-30 min with stirring in toluene.
  • 42
    • 74949086459 scopus 로고    scopus 로고
    • Further increase in water content gave inconsistent results. In general, catalytic performance decreases with an increase in water content beyond 300 ppm
    • Further increase in water content gave inconsistent results. In general, catalytic performance decreases with an increase in water content beyond 300 ppm.
  • 47
    • 5344224096 scopus 로고    scopus 로고
    • For similar dual activation of electrophiles and nucleophiles by adjacent metal centers, see the reviews: (a) Ma, J. A.; Cahard, D. Angew. Chem. Int. Ed 2004, 43, 4566.
    • (2004) Angew. Chem. Int. Ed , vol.43 , pp. 4566
    • Ma, J.A.1    Cahard, D.2
  • 50
    • 74949132323 scopus 로고    scopus 로고
    • 2O is 0.5:0.11
    • 2O is 0.5:0.11.
  • 51
    • 74949137152 scopus 로고    scopus 로고
    • 4. The hydrolysis was confirmed by the formation of n-BuOH with concomitant decrease in the concentration of water as measured by in situ IR. The hydrolysis is generally faster, and a major part of hydrolysis takes place within 15 minutes. Hydrated inorganic salts can also be used for partial hydrolysis
    • 4. The hydrolysis was confirmed by the formation of n-BuOH with concomitant decrease in the concentration of water as measured by in situ IR. The hydrolysis is generally faster, and a major part of hydrolysis takes place within 15 minutes. Hydrated inorganic salts can also be used for partial hydrolysis.
  • 52
    • 74949098553 scopus 로고    scopus 로고
    • The beneficial effect of alcohols as additives is well known in the literature, and generally i-PrOH is used
    • The beneficial effect of alcohols as additives is well known in the literature, and generally i-PrOH is used.
  • 53
    • 74949089386 scopus 로고    scopus 로고
    • See Supporting Information for details
    • See Supporting Information for details.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.