Cyclization of some substituted 2-(n-acylthioureido)-3-carbethoxythiophenes
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The intramolecular cyclization of 2-(N-acylthioureido)-3-carbethoxy-4,5-R,R'-thiophenes with the formation of potassium salts of 2-thio-4-oxo-5,6-R,R'-3,4-dihydrothieno[2,3-d] pyrimidine was studied, and some of their S-derivatives were obtained.
KeywordsPotassium Organic Chemistry Pyrimidine Thiophene Potassium Salt
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