- Synthesis of 2-thioxopyrido[2,3-d]pyrimidine-4-ones and 1,4-bridged bis-2-thioxo-1,2,3,4-tetrahydro-5-pyrimidine carboxylic acid ethyl ester derivatives
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The synthesis and structural characterization of 2-thioxopyrido[2,3-d]pyrimidinethiones 5,9,12 and 4,4′-(1,4-phenylene)-di-(2-thioxo-1,2,3,4-tetrahydropyrimidines) 16-22 are described.
- Shaker,Mahmoud,Abdel-Latif
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p. 207 - 222
(2007/10/03)
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- Reactions of nitriles under acidic conditions : Part IX - Synthesis of 6-amino-1-aryluracils, 6-amino-1-aryl-2-thiouracils and 6-amino-1,3-diaryl-2-thiouracils under acidic conditions
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6-Amino-1-aryluracils (11a-g), 6-amino-1-aryl-2-thiouracils (12a-g), and 6-amino-1,3-diaryl-2-thiouracils (6a,b) have been synthesised through the dry hydrogen chloride gas-catalysed condensation of ethyl cyanoacetate (7) with appropriate arylureas and thioureas. 1-Aryl (12a-g) and 1,3-diaryl-2-thiouracils (6c-g) have been converted to the corresponding 1-aryl (15a-g) and novel hitherto unre-ported, 1,3-diaryluracils (5a-e) through their oxidative desulphurisation.
- Shishoo,Jain,Jain,Shah,Ravikumar
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p. 662 - 668
(2007/10/03)
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