含［2，2］对环番基的1，3－丁二酮及其金属螯合物的合成

含［2，2］对环番基的1，3－丁二酮及其金属螯合物的合成 SYNTHESIS OF 1.3-BUTANEDIONE AND ITS COMPLEXES BEAVING [2,2] PARACYCLOPHANE 黄筱玲 1 first-author 曲凡歧 1 胡建华 1 姜风超 1 武汉大学化学系 武汉大学化学系 Department of Chemistry, Wuhan University Department of Chemistry, Wuhan University 在乙醇钠存在下，４－乙酰基［２，２］对环番１与乙酸乙酯作用发生ｃｌａｉｓｅｎ酯缩合反应，生成β－二酮２，而与过量的氟乙酸甲酯反应则生成一个呋喃化合物３．文中提出了形成３的可能的反应历程并制备了化合物２，３的铜、镧、铈和格的螯合物． Acetyl-[2, 2] paracyclophano reacts with excess ethyl acetate or methyl fluoroacetate under sodium ethoxide. In the first reaction, 1-（4’-[2, 2] paracyclophano） butanedione 2 is obtained, in the case of latter a furan derivative 3 is yielded. A multipile condensation and elimination mechanism was proposal for 3 formed. Some chef4ies of 2 and 3 are prepared. ［2 2］对环番 呋喃合成 β－二酮螯合物 O623.523 1994-01-01 2021-04-01 1