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Zeitschrift für Kristallographie - New Crystal Structures

Editor-in-Chief: Huppertz, Hubert

Ed. by Reiß, Guido

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2197-4578
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Volume 231, Issue 3
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Crystal structure of 3-(benzofuran-2-yl)-5-(4-fluorophenyl)-4,5-dihydro-1Hpyrazole-1-carbothioamide, C18H14FN3OS

Gamal A. El-Hiti
  • Corresponding author
  • Cornea Research Chair, Department of Optometry, College of Applied Medical Sciences, King Saud University, P. O. Box 10219, Riyadh 11433, Saudi Arabia
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/ Bakr F. Abdel-Wahab
  • Department of Chemistry, College of Science and Humanities, Shaqra University, Duwadimi, Saudi Arabia
  • Applied Organic Chemistry Department, National Research Centre, Dokki, Giza, Egypt
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/ Mohammed Baashen
  • Department of Chemistry, College of Science and Humanities, Shaqra University, Duwadimi, Saudi Arabia
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/ Hazem A. Ghabbour
  • Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457 - Riyadh 11451, Kingdom of Saudi Arabia
  • Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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/ Obaid S. Alruqi
  • Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457 - Riyadh 11451, Kingdom of Saudi Arabia
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Published Online: 2016-04-21 | DOI: https://doi.org/10.1515/ncrs-2015-0304

Abstract

C18H14FN3OS, monoclinic, P21/c (no. 14), a = 14.9084(6) Å, b = 11.2339(4) Å, c = 9.4417(4) Å, β = 102.331(2)°, V = 1544.81(11) Å3, Z = 4, Rgt(F) = 0.0365, wRref(F2) = 0.0953, T = 100 K.

This article offers supplementary material which is provided at the end of the article.

CCDC no.:: 1443915

Tables 13 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters.

Table 1

Data collection and handling.

Table 2

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

Table 3

Fractional coordinates and atomic displacement parameters (Å2).

Source of material

The title compound was synthesized from reaction of 1-(benzofuran-2-yl)-3-(4-fluorophenyl)prop-2-en-1-one with thiosemicarbazide in ethanolic sodium hydroxide under reflux for 12 h. The solid obtained on cooling was recrystallized from dimethylformamide to give colorless crystals of the title compound (Mp. 260–262 °C) [6].

Experimental details

Cell refinement and data reduction were carried out by Bruker SAINT [4]. The hydrogen atoms were placed on calculated positions with the help of the SHELX program (AFIX option 13, 23 and 43) [5]. The atoms O1/O7A und C7,H7/C1A,H1A are disordered and were split in the refinement in two parts with occupancy factors of 0.827(7) (O1, C7, H7) and 0.173(7) (O7A, C1A, H1A). The figure shows only one part for clarity.

Discussion

Pyrazolin-1-carbothioamide derivatives show some interesting biological activities such as antibacterial [1], antifungal [2] and anticancer properties [3].

In the title compound, the asymmetric unit contains one independent molecule. The central pyrazol ring (N1/N2/C9—C11) makes the dihedral angles of 15.28(2)° and 83.11(3)° with the benzofuran ring (O1/C1—C8) and the fluorophenyl ring (C12—C17), respectively. Consequently, the fluorophenyl ring is nearly perpendicular to the plane of whole molecule (cf. Figure). The structure shows at least two hydrogen bonds between N3—H2N3⋯F1i and N3—H1N3⋯S1ii with symmetry code: (i) x, y, z−1; (ii) x, −y+1/2, z−1/2.

Acknowledgements:

The authors extend their appreciation to the College of Applied Medical Sciences Research Centre and the Deanship of Scientific Research at King Saud University for their funding of this research.

References

  • 1.

    Rani, M.; Yusuf, M.; Khan, S. A.: Synthesis and in-vitro-antibacterial activity of [5-(furan-2-yl)-phenyl]-4,5-carbothioamide-pyrazolines. J. Saudi Chem. Soc. 16 (2012) 431–436. Web of ScienceGoogle Scholar

  • 2.

    Sharshira, E. M.; Hamada, N. M. M.: Synthesis, antibacterial and antifungal activities of some pyrazole-1-carbothioamides and pyrimidine-2(1H)-thiones. Am. J. Org. Chem. 2 (2012) 26–31. Google Scholar

  • 3.

    Lv, P.-C.; Li, H.-Q.; Sun, J.; Zhou, Y.; Zhu, H.-L.: Synthesis and biological evaluation of pyrazole derivatives containing thiourea skeleton as anticancer agents. Bioorg. Med. Chem. 18 (2010) 4606–4614. Google Scholar

  • 4.

    Bruker: APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA, 2009. Google Scholar

  • 5.

    Sheldrick, G. M.: A short history of SHELX. Acta Crystallogr. A64 (2008) 112–122. Web of ScienceGoogle Scholar

  • 6.

    Mohamed, H. A.; Abdel-Latif, E.; Abdel-Wahab, B. F.; Awad, G. E. A.: Novel antimicrobial agents: fluorinated 2-(3-(benzofuran-2-yl) pyrazol-1-yl)thiazoles. Int. J. Med. Chem. ID: 986536 (2013) 1–6. Google Scholar

About the article

Received: 2015-12-24

Accepted: 2016-03-30

Published Online: 2016-04-21

Published in Print: 2016-09-01


Citation Information: Zeitschrift für Kristallographie - New Crystal Structures, Volume 231, Issue 3, Pages 887–888, ISSN (Online) 2197-4578, ISSN (Print) 1433-7266, DOI: https://doi.org/10.1515/ncrs-2015-0304.

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©2016 Gamal A. El-Hiti et al., published by De Gruyter.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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