Aromatization of aliphatic compounds—III: Abnormal michael addition to diethyl-α-acetyl-α'-methyl succinate |
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Authors: | Leandro Baioccni Marilena Giannangeu Michele Bonanomi |
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Affiliation: | Department of Chemistry, F. Angelini Research Institute, Viale Amelia 70, 00181 Rome, Italy |
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Abstract: | While isobutyl vinyl ketone reacts with α-acetyl-α'-methyl succinate to give a normal Michael adduct, the Mannich base or its quaternary derivative as a source of vinylketonc gives the butenolide derivative 8a. Isobutyl cyclohexenoneacetic acid (1b) previously stated to be the reaction product was present only as a by-product. When α-acetyl-α'-methyl succinate is treated with acrylic acid derivatives only butenolides 8c–8f were obtained. |
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