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X-ray study of two 1-substituted 3-acylamino-2-pyrazolines

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Abstract

The previously reported IR study on 21 different 1-substituted 3-acylamino-2-pyrazolines assumed thecis configuration for the amide groups. In order to establish the configuration, X-ray structure determinations of two model compounds (1-phenyl-3-benzoylaminopyrazoline, monoclinic,a = 5.218,b = 8.830,c = 14.372 Å, β = 90.7 °,Z = 2, P2 1; 1-benzyl-3-acetaminopyrazoline, monoclinic,a = 9.529,b = 13.679,c = 18.112 Å, β = 96.7 °,Z = 8,P21/n) were performed. Both structures were solved by direct methods, and refined to a finalR = 0.075 for 710 andR = 0.122 for 2140 observed reflections. The configurations of the amide groups were found to betrans.

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Authors and Affiliations

  1. Chinoin Pharmaceutical and Chemical Works, POB. 11O, H-1325, Budapest, Hungary

    K. Simon, K. Horváth & D. Korbonits

  2. Central Research Institute for Chemistry, Hungarian Academy of Sciences, POB. 17, H-1525, Budapest, Hungary

    L. Párkányi

Authors
  1. K. Simon
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  2. K. Horváth
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  3. D. Korbonits
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  4. L. Párkányi
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Simon, K., Horváth, K., Korbonits, D. et al. X-ray study of two 1-substituted 3-acylamino-2-pyrazolines. Journal of Crystal and Molecular Structure 11, 33–42 (1981). https://doi.org/10.1007/BF01645347

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  • DOI: https://doi.org/10.1007/BF01645347

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