Consecutive reactions of 2-aryl-4-(dichloromethylidene)-1,3-oxazol-5(4H)-ones with methyl 2-isocyanoacetate and then with pyrrolidine, piperidine, or morpholine led to previously unknown derivatives of methyl 5-amino-4,5'-bi-1,3-oxazole-4'-carboxylate.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, 2016, 52(6), 424–426
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Shablykin, O.V., Prokopenko, V.M. & Brovarets, V.S. Interaction of 2-aryl-4-(dichloromethylidene)-1,3-oxazol-5(4H)-ones with methyl 2-isocyanoacetate. Chem Heterocycl Comp 52, 424–426 (2016). https://doi.org/10.1007/s10593-016-1905-8
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DOI: https://doi.org/10.1007/s10593-016-1905-8