5-Alkyl/aryl/hetaryl-4-cyano-3(2H)-furanones undergo ring-cleavage/recyclization in the presence of water under mild conditions [MOH (M = Na, K), aqueous ethanol, 20–25 °C] to afford 4-acyl/aroyl/hetaroyl-5-amino-3(2Н)-furanones in 75–99% yields. Click to show full abstract
5-Alkyl/aryl/hetaryl-4-cyano-3(2H)-furanones undergo ring-cleavage/recyclization in the presence of water under mild conditions [MOH (M = Na, K), aqueous ethanol, 20–25 °C] to afford 4-acyl/aroyl/hetaroyl-5-amino-3(2Н)-furanones in 75–99% yields.
               
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