Synthesis and reactions of some imidazopyrimido (pyrido)thieno [2,3-b]quinoxaline derivatives

Article abstract of DOI:10.1080/10426509908044985

2-Amino-3(4,5-dihydro-1H-imidazol-2-yl)thieno[2,3-b]quinoxaline 2 was prepared and then allowed to react with nitrous acid, triethyl orthoformate, acetic anhydride and carbon disulfide to give the imidazotriazinothienoquinoxaline 3 and imidazopyrimidothienoquinoxaline 4-6 respectively. Starting with thione 6 a series of S-ubstituted mercapto derivatives 7-10 was obtained. Reaction of 2-amino-3-carbonitrile-thieno[2,3-b]quinoxaline 1 with acrylonitrile, malononitrile and/or arylidine malononitrile gave pyridothienoquinoxaline derivatives 11-13.

Full text of DOI:10.1080/10426509908044985

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Phosphorus, Sulfur, and Silicon
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SYNTHESIS AND REACTIONS
OF SOME IMIDAZOPYRIMIDO
(PYRIDO)THIENO [2,3-
b]QUINOXALINE DERIVATIVES
O. S. Moustafa a
a Chemistry Department, Faculty of Science, Assiut
University, Assiut, 71516, Egypt
Published online: 04 Oct 2006.
To cite this article: O. S. Moustafa (1999): SYNTHESIS AND REACTIONS OF SOME
IMIDAZOPYRIMIDO (PYRIDO)THIENO [2,3-b]QUINOXALINE DERIVATIVES, Phosphorus,
Sulfur, and Silicon and the Related Elements, 155:1, 235-243
To link to this article: http://dx.doi.org/10.1080/10426509908044985
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