Study on the Reaction of CIS-1-Acetyl-2-Aryl-6,6-Dimethyl-5,7-Dioxospiro-[2,5]-4,8-Octadiones with Methanol |
| |
| Authors: | Weiguo Cao Weiyu Ding Yali Chen Jinsen Gao |
| |
| Institution: | 1. Department of Chemistry , Shanghai University , Shanghai, 201800, P.R. China;2. Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science , Shanghai, 200032, P.R. China;3. Department of Chemistry , Shanghai University , Shanghai, 201800, P.R. China |
| |
| Abstract: | Cis-l-acetyl-2-aryl-6,6-dimethyl-5,7-dioxo-spiro-2,5]-4,8-octadiones 3a-d (X=p-CH3, p-Cl, H, p-NO2) reacted with anhydrous methanol in a sealed tube at 80°C to form trans, cis-α-carbomethoxy-β-(α′-methoxy-α′-aryl)-γ-methoxy-γ-methyl-γ-butyrolactones 4a-d and cis, cis-α-carbomethoxy-β-(α′-methoxy-α′-aryl)-γ-methoxy-γ-methyl-γ-butyrolactones 5a-d in good yield. |
| |
| Keywords: | Cis-l-acetyl-2-aryl-6 6-dimethyl-5 7-dioxo-spiro-[2 5]-4 8-octadione Trans cis-α-carbomethoxy-β-(α′- methoxy - α′ - aryl) - γ - methoxy - γ - methyl - γ - butyrolactones Cis cis-α-carbomethoxy-β-(α′-methoxy-α′-aryl)-γ-methoxy-γ-methyl-γ-butyrolactones |
|
|
