Structures and Chemical Equilibria of Some N-Heterocycles Containing Amide Linkages

doi:10.3390/80500430

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Molecules 2003, 8(5), 430-438; doi:10.3390/80500430

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Structures and Chemical Equilibria of Some N-Heterocycles Containing Amide Linkages

M. S. Masoud, M. Abd El Zaher Mostafa* , R. H. Ahmed and N. H. Abd El Moneim

Department of Chemistry, Faculty of Science, Alexandria University, Ibrahimia, P.O. Box 426, Alexandria 21321, Egypt

* Author to whom correspondence should be addressed.

Received: 3 July 2002; in revised form: 12 January 2003 / Accepted: 15 April 2003 / Published: 31 May 2003

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Abstract: Structures and chemical equilibria of 5-carboxy-2-thiouracil (1), 5,6-diphenyl-3-hydroxy-1,2,4-triazine (2), 1-phenyl-3-methyl-5-pyrazolone (3) and 2-mercapto-4,6-dimethylpyrimidine hydrochloride (4) are reported. Their electronic transitions are assigned and pK values are evaluated and discussed.

Keywords: Chemical equilibria; 5-carboxy-2-thiouracil; synthesis; electronic transitions and pK values

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MDPI and ACS Style

Masoud, M.S.; Abd El Zaher Mostafa, M.; Ahmed, R.H.; Abd El Moneim, N.H. Structures and Chemical Equilibria of Some N-Heterocycles Containing Amide Linkages. Molecules 2003, 8, 430-438.

AMA Style

Masoud MS, Abd El Zaher Mostafa M, Ahmed RH, Abd El Moneim NH. Structures and Chemical Equilibria of Some N-Heterocycles Containing Amide Linkages. Molecules. 2003; 8(5):430-438.

Chicago/Turabian Style

Masoud, M. S.; Abd El Zaher Mostafa, M.; Ahmed, R. H.; Abd El Moneim, N. H. 2003. "Structures and Chemical Equilibria of Some N-Heterocycles Containing Amide Linkages." Molecules 8, no. 5: 430-438.

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