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oai:kumadai.repo.nii.ac.jp:00022657 2023-08-21T07:04:17Z 407:446:1313 585:596:1316

Mn(III)-Based Oxidative Cyclization of 1,1-Disubstituted Butadienes with Cyclic 1,3-Dicarbonyl Compounds [浜田, 諒一] Nishino, Hiroshi 浜田, 諒一 ハマダ, リョウイチ Hamada, Ryoichi 浜田 ハマダ Hamada 諒一 リョウイチ Ryoichi 西野, 宏 ニシノ, ヒロシ 438 application/pdf 論文(Article) The oxidation of pyrazolidinedione 1 with manganese(III) acetate in the presence of 1,1-diaryl-1,3-butadienes 2a-d did not give cyclization product but 4,4-bis(2-acetoxy-3-butenyl)pyrazolidines 3a-d as a diastereomixture. Using other cyclic 1,3-dicarbonyl compounds, dimedone (4), quinolinone 6, and triketone 8, resulted in the production of the cyclization products 5a-d, 7a-d, and 9a in good yields. A similar reaction of 1,3-cyclopentanedione afforded dialkylated cyclopentanedione 11a together with a small amount of bicyclic compound 12a. 熊本大学 2008-03 eng departmental bulletin paper AM http://hdl.handle.net/2298/12280 https://kumadai.repo.nii.ac.jp/records/22657 AA12112448 熊本大学極低温装置室ユーザー研究報告書 : 熊大極低温 18 11 13 https://kumadai.repo.nii.ac.jp/record/22657/files/KT0018_011-013.pdf application/pdf 319.1 kB 2020-03-02