One-step synthesis of substituted 4,7-bis[alkyl(aryl)imino]-3-oxa-6-thia-1-azaspiro[4.4]nona-1,8-dienes |
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| Authors: | Issa Yavari Hoorieh Djahaniani |
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| Institution: | Department of Chemistry, Tarbiat Modarres University, PO Box 14115-175, Tehran, Iran |
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| Abstract: | Alkyl-(aryl) isocyanides react with benzoyl isothiocyanate in the presence of dialkyl acetylenedicarboxylates or dibenzoylacetylene in one-pot to afford highly substituted 4,7-bisalkyl(aryl)imino]-2-phenyl-3-oxa-6-thia-1-azaspiro4.4]nona-1,8-dienes, with double insertion of the isocyanide, in 38-45% yields (based on the isocyanide). |
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| Keywords: | Four-component reaction Isocyanides Azaspiroheterocycle |
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