Ruzicka has reported the preparation of 3-carbethoxy-3-methylcyclopentanone (I) through severa1 steps from ethyl levulinate. In the present investigation, a shorter synthesis of the corresponding methyl ester (II) was achieved from the adduct of butadiene with methyl methacrylate by the following route.
Ruzicka 报道了从
乙酰丙酸乙酯通过几个步骤制备 3-carbethoxy-3-methylcyclopentanone (I)。在本研究中,通过以下路线,从
丁二烯与
甲基丙烯酸甲酯的加合物中合成相应的甲酯 (II)。