3-methyl-1-[3-(3-methyl-2-oxobutylidene)-1,4-dihydro-6-methyl-quinoxalin-2-ylidene]butan-2-one.

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

doi:10.3390/M384

,

and

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

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Author to whom correspondence should be addressed.

Molbank2004, 2004(1), M384;https://doi.org/10.3390/M384

Version Notes

Order Reprints

To a solution of 3,8-dihydroxy-2,9-dimethyl deca-3,7-diene-5,6-dione 2 [1] (452 g, 2 mmol) in absolute ethanol (15 mL) was added the 4-methylorthophenylenediamine 1 (244 mg, 2 mmol) and the mixture was refluxed for 90 min [2] . The orange precipitate 3 was filtred off, washed with ethanol and dried in air.

Yield: (400 mg , 64 %).

Melting point: 98 - 99 °C (EtOH).

IR (KBr, cm^-1): 2960 (CH of CH₃) ; 1560 (C=O).

¹H-NMR (200 MHz, CDCl₃) d ppm: 14.66 (s, 2H, N-H); 14.46 (s, 2 H, N-H); 6.89 (m, 3H, CH Benz); 5.71 (s, 1H, =CH); 5.69 (s, 1H, =CH); 2.68 (m, 2H, C-H, J = 6.9 Hz); 2.32 (s, 3H, CH₃ ); 1.9 (d, 12H, CH₃, J = 6.9 Hz).

E. A: Anal. Calc. for C₁₉H₂₄N₂O₂: C 73.05, H 7.74, N 8.97; found : C 73.18, H 7.77, N 8.76.

Supplementary materials

Supplementary File 1Supplementary File 2Supplementary File 3

References and notes:

Bouabdallah, I.; Zidane, I.; Malek, F.; Touzani, R.; El Kodadi, M.; Ramdani, A. Molbank 2003, M 345.
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.

Sample Availability: Available from the Authors.

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