Reaction of 2H-Cyclohepta[b]furan-2-ones with Pyridinium Salts of Trifluoromethanesulfonic Anhydride
作者:Noboru Morita、Tomohiro Matsuki、Masashi Nakashima、Taku Shoji、Kozo Toyota、Shigeru Kikuchi、Shunji Ito
DOI:10.3987/com-06-s(o)48
日期:——
2H-Cyclohepta[b]furan-2-one (1) reacted with TPT, electrophilically to give 3-dihydropyridinyl-2H-cyclohepta[b]furan-2-one and subsequent treatment with sodium hydroxide in ethanol gave 3-(4-pyridinyl)-2H-cyclohepta[b]furan-2-one in excellent yields. Furthermore, it reacted with methyl iodide give a corresponding pyridinium salt easily.
2H-环庚[b]furan-2-one (1) 与 TPT 发生亲电反应,得到 3-二氢吡啶基-2H-环庚[b]furan-2-one,随后在乙醇中用氢氧化钠处理得到 3-(4- pyridinyl)-2H-cyclohepta[b]furan-2-one 的产率很高。此外,它与甲基碘反应容易得到相应的吡啶鎓盐。