2-[-3-(2-(4-methylphenyl)-2-oxoethylidene)-1,4-dihydro- quinoxaline-2(1H)-ylidene]-1-(4-methylphenyl) ethanone

Mohamed El Kodadi; Fouad Malek; Rachid Touzani; Ismail Zidane; Ibrahim Bouabdallah; Abdelkrim Ramdani

doi:10.3390/M355

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Laboratoire de Chimie Organique Physique, Département de Chimie, Faculté des Sciences, Université Mohamed 1er, 60 000 Oujda, Maroc

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Molbank2004, 2004(1), M355;https://doi.org/10.3390/M355

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The product 3 was prepared by the condensation of dienone 2 [1] (1g, 3.11 mmol) with o-phenylenediamine 1 (0.33g, 3.11 mmol) by refluxing an ethanol (50 mL) solution for 1 h. under nitrogen [2,3]. The brown solid that formed, was collected by filtration and was purified by recrystallization in (acetone-chloroform : 50-50). The colour of the compound: red, yield : (1g, 81%).

Melting point : 198-200°C (acetone-chloroform)

IR (KBr, cm^-1) : 1570 (C=O) ; 1410 (C=C).

¹H-NMR (200 MHz, CDCl₃) δ : 7.9 (d, 4H, J= 8.06Hz, -CH Benz) ; 7.31 (d, 4H, J= 8.06Hz, CH Benz) ; 7.15-7.17 (m, 4H, -CH Benz) ; 6.51 (s, 2H, -CHCO) ; 2.44 (s, 6H, 2CH₃).

E. A: Anal. Calc for: C₂₆H₂₂N₂O₂ .C₆H₆.H₂O , C : 78.34, H : 6.16, N : 5.71

Found , C : 79.16, H : 5.78, N : 5.86.

Supplementary materials

Supplementary File 1Supplementary File 2Supplementary File 3

References

Saalfrank, R.W.; Lôw, N.; Demleitner, B.; Stalk, D.; Teichert, M. Chem. Eur. J. 1998, 4, 1305–1311.
Touzani, R.; Ben-hadda, T.; El Kadiri, S.; Ramdani, A.; Maury, O.; Le Bozec, H.; Toupet, L.; Dixneuf, P.H. New J. Chem. 2001, 25, 391–395.
Waring, M.J.; Ben-hadda, T.; Kotchevar, A.T.; Ramdani, A.; Touzani, R.; El Kadiri, S.; Hakkou, A.; Bouakka, M.; Ellis, T. Molecules 2002, 7, 641–656.
Benzene was used in a former cristallization

Sample Availability: Available from the Authors.

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