Chemistry of Heterocyclic Compounds p. 18 - 21 (1992)
Update date:2022-08-16
Topics:
Martishonok, V. V.
Grinkevich, O. A.
Biba, V. I.
Bubel, O. N.
γ-(1-Ethoxyvinyl)- and β-(1-ethoxyvinyl)-α-ethoxycarbonyl-γ-butyrolactones were obtained by the reaction of 2-(1-ethoxyvinyl)oxiranes with sodiomalonic ester.Decarboxylation of the γ-(1-ethoxyvinyl)-α-ethoxycarbonyl-γ-butyrolactones in DMSO leads to γ-(1-ethoxyvinyl)-γ-butyrolactones, the hydrolysis of which gives γ-acetyl-γ-butyrolactones.Ethyl trans-3-acetyl-3-pentenoate was obtained by decarboxylation of γ-methyl-3-(1-ethoxyvinyl)-α-ethoxycarbonyl-γ-butyrolactone in DMSO.
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