Abstract
Reactions of (Z)-5-benzylidene-2-thiohydantoin with formaldehyde and primary aromatic amines afforded novel derivatives of imidazo[2,1-b][1,3,5]thiadiazine in 50–69% yields.
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Dedicated to Academician N. S. Zefirov on the occasion of his 70th birthday.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 2158–2160, September, 2005.
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Frolov, K.A., Dotsenko, V.V., Krivokolysko, S.G. et al. Mannich reaction in the synthesis of N,S-containing heterocycles. 1. Synthesis of novel derivatives of imidazo[2,1-b][1,3,5]thiadiazine. Russ Chem Bull 54, 2226–2228 (2005). https://doi.org/10.1007/s11172-006-0102-9
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DOI: https://doi.org/10.1007/s11172-006-0102-9