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Synthesis 1987; 1987(3): 286-287
DOI: 10.1055/s-1987-27920
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Synthesis of Novel 2-Amino-4-aryl-5-arylthio-6-methoxypyrimidines and 3(5)-Aryl-4-arylthio-5(3)-methylthiopyrazoles via α-Oxo-α-arylthioketene dithioacetals

Gurdeep Singh* , Biswajit Deb, Hiriyakkanavar Ila, Hiriyakkanavar Junjappa
  • *Department of Chemistry, North-Eastern Hill University, Bijni Complex, Bhagyakul, Shillong 793003, Meghalaya, India
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Publication Date:
12 September 2002 (online)

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Reactions of α-arylthio-α-oxoketene dithioacetals 1 with guanidine nitrate in the presence of sodium methoxide in refluxing methanol afford novel 2-amino-4-aryl-5-arylthio-6-methoxy-pyrimidines. Similarly, when compounds 1 are reacted with hydrazine hydrate in refluxing ethanol, novel substituted 3(5)-aryl-4-arylthio-5(3) methylthiopyrazoles are obtained in high yields.