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Pyrimidines. XIII. Novel pyrimidine to pyrimidine transformation reactions
Journal of Heterocyclic Chemistry, 1977AbstractNovel pyrimidine to pyrimidine transformation reactions are described. 1,3‐Dimethyl‐(or diethyl)‐uracil(1) are converted into isocytosine, 2‐thiouracil or uracil derivatives by treatment with guanidine, thiourea or urea, respectively. The latter two cases require base catalysis. The effects of some substituents at C‐5 and C‐6 of 1,3‐dialkylated
Kosaku Hirota +2 more
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ChemInform Abstract: PYRIMIDINES. XIII. NOVEL PYRIMIDINE TO PYRIMIDINE TRANSFORMATION REACTIONS
Chemischer Informationsdienst, 1977AbstractBei der Behandlung mit Guanidin (II) erhält man aus 1,3‐Dimethyluracil sowie den . analogen Verbindungen (I) die Pyrimidinone (III).
K. HIROTA, K. A. WATANABE, J. J. FOX
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1992
This chapter explores pyrimidines. Formal replacement of a CH unit in pyridine by a nitrogen atom leads to the series of three possible diazines: pyridazine, pyrimidine, and pyrazine. Like pyridine, they are fully aromatic heterocycles. The effect of an additional nitrogen atom as compared to pyridine accentuates the essential features of pyridine ...
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This chapter explores pyrimidines. Formal replacement of a CH unit in pyridine by a nitrogen atom leads to the series of three possible diazines: pyridazine, pyrimidine, and pyrazine. Like pyridine, they are fully aromatic heterocycles. The effect of an additional nitrogen atom as compared to pyridine accentuates the essential features of pyridine ...
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Pyrimidines. VIII. Pyrimidine Derivatives of Thioguanine
Journal of Medicinal and Pharmaceutical Chemistry, 1962H C, KOPPEL +3 more
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