Morita.Baylis.Hillman Route to 8,9,9a,10-Tetrahydrobenzo[b][1,8]naphthyridine-6(7H)-ones and 3,4,4a,5-Tetrahydrodibenzo[b,g][1,8]naphthyridine-1(2H)-ones
作者:Sang-Hyun Ahn、Seung-Soon Jang、Yong-Hyun Kim、Kee-Jung Lee
DOI:10.5012/bkcs.2011.32.8.3145
日期:2011.8.20
the MBH acetates, obtained from 2-halobenzaldehydeor 2-chloroquinoline-3-carboxaldehyde with 2-cyclohexen-1-one, with a base into 2-arylmethylphenol or 2-(quinoline-3-yl)methylphenol, respectively. This reaction proceeded bya base assisted elimination of acetic acid and following keto–enol tautomerization and aromatization by 1,5-hydrogentransfer. Although the acetylated MBH adduct between 2-cyclohexen-1-one
由 2-卤代苯甲醛或 2-氯喹啉-3-甲醛与 2-环己烯-1-酮获得的 MBH 乙酸酯分别用碱转化为 2-芳基甲基苯酚或 2-(喹啉-3-基)甲基苯酚. 该反应通过碱辅助消除乙酸进行,然后通过 1,5-氢转移进行酮-烯醇互变异构化和芳构化。虽然 2-环己烯-1-酮和 2-氯吡啶-3-甲醛或 2-氯喹啉-3-甲醛之间的乙酰化 MBH 加合物是已知的,