7 of 8
EL‐REMAILY AND ELHADY
C, 30.01; H, 1.26; F, 23.74; N, 35.00. Found: C, 30.02; H,
1.27; F, 23.71; N, 34.98. MS (m/z): 321.31 (M+).
ORCID
4.15 | 1‐[1‐(2,3,5,6‐tetrafluoro‐4‐
formylphenyl)‐1H‐tetrazol‐5‐yl]guanidine
3ad
REFERENCES
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Mp 312–314 °C. FTIR (KBr, cm−1): 3390, 3321, 3191,
1
2879, 1701; H NMR (400 MHz, CDCl3): δ 10.16 (s, 1H),
6.54 (br, 4H); 13C NMR (400 MHz, CDCl3): δ 181.92,
164.05, 158.21, 139.6 (dm, JC‐F = 243.1 Hz), 147.7 (dm,
JC‐F = 263.5 Hz), 127.11, 112.17; 19F NMR (400 MHz,
CDCl3): δ −147.90 (m, 2F), −154.21 (m, 2F); Anal. calc.
For C9H5F4N7O (303.17) C, 35.65; H, 1.66; F, 25.07; N,
32.34. Found: C, 35.67; H, 1.68; F, 25.04; N, 32.33. MS
(m/z): 304.12 (M+).
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4.16 | 4‐(5‐carbamimidamido‐1H‐tetrazol‐
1‐yl)‐2,3,5,6‐tetrafluorobenzoic acid 3ae
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Soc. Rev. 2005, 34, 573.
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Mp 298–300 °C. FTIR (KBr, cm−1): 3429, 3383, 3277,
3192, 2878, 1708; 1H NMR (400 MHz, CDCl3): δ 9.87
(br, 1H), 6.52 (br, 4H),13C NMR (400 MHz, CDCl3): δ
165.82, 164.04, 158.20, 139.3 (dm, JC‐F = 244.3 Hz),
147.2 (dm, JC‐F = 260.1 Hz), 125.42, 107.05; 19F NMR
(400 MHz, CDCl3): δ −141.09 (m, 2F), −152.95 (m, 2F);
Anal. calc. For C9H5F4N7O2 (319.17) C, 33.87; H, 1.58;
F, 23.81; N, 30.72. Found: C, 33.88; H, 1.59; F, 23.80; N,
30.70. MS (m/z): 320.23 (M+).
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4.17 | Methyl 4‐(5‐carbamimidamido‐1H‐
tetrazol‐1‐yl)‐2,3,5,6‐tetrafluorobenzoate 3af
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1
(s, 3H, CH3); 13C NMR (400 MHz, CDCl3): δ 164.04,
161.13, 158.21, 139.9 (dm, JC‐F = 243.7 Hz), 145.8 (dm,
JC‐F = 260.2 Hz), 125.40, 107.20, 52.17; 19F NMR
(400 MHz, CDCl3): δ −141.78 (m, 2F), −153.78 (m, 2F);
Anal. calc. For C10H7F4N7O2 (333.20) C, 36.05; H, 2.12;
F, 22.81; N, 29.43. Found: C, 36.02; H, 2.10; F, 22.78; N,
29.40. MS (m/z): 334.27 (M+).
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ACKNOWLEDGEMENTS
[19] M. Nasrollahzadeh, Y. Bayat, D. Habibi, S. Moshaee, Tetrahe-
dron Lett. 2009, 50, 4435.
The author is deeply grateful to Sheng Xie in Depart-
ment of Chemistry, KTH ‐ Royal Institute of Technol-
ogy, Teknikringen 30, Stockholm, Sweden and Sohag
University in Egypt for supporting and facilitating this
study.
[20] M. L. Kantam, K. B. S. Kumar, K. P. Raja, J. Mol. Catal. A:
Chem. 2006, 247, 186.
[21] M. L. Kantam, V. Balasubrahmanyam, K. B. S. Kumar, Synth.
Commun. 2006, 36, 1809.