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Reaction of 2-Pentene-1,4-diones with Cyclic 1,3-Dicarbonyl Compounds in the Presence of BF3 and the Related Reaction 桟, 明美 カケハシ, アケミ Kakehashi, Akemi 西野, 宏 ニシノ, ヒロシ Nishino, Hiroshi 430 Lewis acid heterocyclic compounds furobenzofuranones photocyclization benzonaphthofurans The reaction of 2-pentene-1,4-diones as a building block with cyclic 1,3-dicarbonyl compounds gave furo[3,2-b]benzofuran-8(7H)-ones and/or 2-(acetyl-2-hydroxy-1-propenyl)-6,7-dihydrobenzofuran-4(5H)-ones in good yields. The obtained 2-(acetyl-2-hydroxy-1-propenyl)-6,7-dihydrobenzofuran-4(5H)-ones underwent the photocyclization to produce benzo[b]naphtho[1,2-d]furan-11(8H)-ones in quantitative yields. 熊本大学 2010-03 eng departmental bulletin paper AM http://hdl.handle.net/2298/27687 https://kumadai.repo.nii.ac.jp/records/27624 AN10490377 熊本大学極低温装置室ユーザー研究報告書 : 熊大極低温 20 11 13 https://kumadai.repo.nii.ac.jp/record/27624/files/KT0020_011-013.pdf application/pdf 252.4 kB 2020-03-02