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Volumn 2007, Issue 5, 2007, Pages 152-166

Intermolecular 1,3-dipolar cycloadditions of azomethine imines

Author keywords

1,3 dipole; Azomethine imine; Pyrazolidine

Indexed keywords


EID: 33846121008     PISSN: 1551-7012     EISSN: 14246376     Source Type: Journal    
DOI: 10.3998/ark.5550190.0008.513     Document Type: Article
Times cited : (18)

References (23)
  • 3
    • 0016417266 scopus 로고    scopus 로고
    • cf.: Dutta, A. S.; Morley, J. S. J. Chem. Soc., Perkin Trans. 1 1975, 1712.
    • cf.: Dutta, A. S.; Morley, J. S. J. Chem. Soc., Perkin Trans. 1 1975, 1712.
  • 5
    • 0003727958 scopus 로고    scopus 로고
    • See, for example:, Abell, A, Ed, Jai Press Inc, Stamford USA
    • See, for example: Advances in Amino Acid Mimetics and Peptidomimetics, Abell, A., Ed.; Jai Press Inc, Stamford (USA), 1999; Vol. 2.
    • (1999) Advances in Amino Acid Mimetics and Peptidomimetics , vol.2
  • 15
    • 85069127767 scopus 로고    scopus 로고
    • Experiments carried out in an NMR tube with d8-toluene showed that heating for 72 h was required for complete reaction of the dipole to occur.
    • Experiments carried out in an NMR tube with d8-toluene showed that heating for 72 h was required for complete reaction of the dipole to occur.
  • 18
    • 85069125036 scopus 로고    scopus 로고
    • In all cycloadditions carried out with mono-substituted dipolarophiles, where two 4-substituted pyrazolidines were observed, the isomer identified as syn- was less polar in TLC analysis on silica than the anti- isomer. The chemical shift of the methine proton at C-4 was also found to be greater for the syn-isomer than for the anti-isomer δ; 3.94 ppm for 10 and δ 3.45 for 11, Values for this proton in 21 and 22 are δ 3.76 and δ 3.05, respectively
    • In all cycloadditions carried out with mono-substituted dipolarophiles, where two 4-substituted pyrazolidines were observed, the isomer identified as syn- was less polar in TLC analysis on silica than the anti- isomer. The chemical shift of the methine proton at C-4 was also found to be greater for the syn-isomer than for the anti-isomer (δ; 3.94 ppm for 10 and δ 3.45 for 11). Values for this proton in 21 and 22 are δ 3.76 and δ 3.05, respectively.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.