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Volumn 9, Issue 16, 2007, Pages 2981-2984

Stereospecific cyclopropanation of highly substituted C-C double bonds promoted by CrCl2. Stereoselective synthesis of cyclopropanecarboxamides and cyclopropyl ketones

Author keywords

[No Author keywords available]

Indexed keywords

AMIDE; CHLORIDE; CHROMIUM CHLORIDE; CHROMIUM DERIVATIVE; CYCLOPROPANE DERIVATIVE; KETONE; MORPHOLINE DERIVATIVE;

EID: 34547927263     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol070896d     Document Type: Article
Times cited : (32)

References (55)
  • 1
    • 34547939391 scopus 로고
    • The Chemistry of the Cyclopropyl Group;, Rappoport, Z, Eds, John Wiley and Sons: New York
    • The Chemistry of the Cyclopropyl Group; Patai, S., Rappoport, Z., Eds.; John Wiley and Sons: New York, 1987.
    • (1987) Patai, S
  • 8
    • 0000470204 scopus 로고
    • Biochemistry of the Cyclopropyl Group
    • Patai, S, Rappoport, Z, Eds, John Wiley and Sons: New York, Chapter 16, pp
    • (g) Liu, H. W.; Walsh, C. T. Biochemistry of the Cyclopropyl Group. In The Chemistry of the Cyclopropyl Group; Patai, S., Rappoport, Z., Eds.; John Wiley and Sons: New York, 1987; Chapter 16, pp 959-1025.
    • (1987) The Chemistry of the Cyclopropyl Group , pp. 959-1025
    • Liu, H.W.1    Walsh, C.T.2
  • 46
    • 0035898426 scopus 로고    scopus 로고
    • α,β-Unsaturated amides 1 were prepared following the method described in: Concellón, J. M.; Pérez-Andrés, J. A.; Rodriguez-Solla, H. Chem. Eur. J. 2001, 7, 3062-3068.
    • (a) α,β-Unsaturated amides 1 were prepared following the method described in: Concellón, J. M.; Pérez-Andrés, J. A.; Rodriguez-Solla, H. Chem. Eur. J. 2001, 7, 3062-3068.
  • 47
    • 34547952736 scopus 로고    scopus 로고
    • Compounds 1e-g were easily obtained through the amination of cinnamoyl chloride in THF.
    • (b) Compounds 1e-g were easily obtained through the amination of cinnamoyl chloride in THF.
  • 48
    • 34547955089 scopus 로고    scopus 로고
    • (Z)-Cinnamamide 1h was obtained from the catalytic Lindlar's hydrogenation of N,N-diethyl-3-phenylpropiolamide.
    • (c) (Z)-Cinnamamide 1h was obtained from the catalytic Lindlar's hydrogenation of N,N-diethyl-3-phenylpropiolamide.
  • 49
    • 0344391940 scopus 로고    scopus 로고
    • (Z)-Amide 1o was prepared by using the method described in: Concellón, J. M.; Bardales, E. J. Org. Chem. 2003, 68, 9492-9495.
    • (d) (Z)-Amide 1o was prepared by using the method described in: Concellón, J. M.; Bardales, E. J. Org. Chem. 2003, 68, 9492-9495.
  • 50
    • 34547959652 scopus 로고    scopus 로고
    • Although the reactions were all carried out on a 0.4 mmol scale, when this process was carried out on a 3 mmol scale no differences were observed. However, 4 equiv of CrCl2 were necessary; when a lower amount of CrCl2 was employed (3 equiv) lower yields were obtained see also Table 1
    • 2 was employed (3 equiv) lower yields were obtained (see also Table 1).
  • 51
    • 0001061659 scopus 로고
    • Magnetic Resonance and Infrared Spectra of Cyclopropanes and Cyclopropenes
    • Patai, S, Rappoport, Z, Eds, John Wiley and Sons: New York, Chapter 3
    • Morris, D. G. Nuclear Magnetic Resonance and Infrared Spectra of Cyclopropanes and Cyclopropenes. In The Chemistry of the Cyclopropyl Group; Patai, S., Rappoport, Z., Eds.; John Wiley and Sons: New York, 1987; Chapter 3.
    • (1987) The Chemistry of the Cyclopropyl Group
    • Morris, D.1    Nuclear, G.2
  • 55
    • 34547941364 scopus 로고    scopus 로고
    • This is based on the well-known resonance of the lone pair electron of the nitrogen atom with the carbonyl group. As a consequence of this conjugation the free rotation through the CO-N bond is restricted, being this CO-N bond is shorter than a C-N bond The Chemistry of Acid Derivatives Patai, S, Ed, John Wiley and Sons: New York, 1979; Supplement B
    • This is based on the well-known resonance of the lone pair electron of the nitrogen atom with the carbonyl group. As a consequence of this conjugation the free rotation through the CO-N bond is restricted, being this CO-N bond is shorter than a C-N bond (The Chemistry of Acid Derivatives Patai, S., Ed.; John Wiley and Sons: New York, 1979; Supplement B).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.