New synthetic approach to epoxyisoindolo[2,1-a]quinolines based on cycloaddition reactions of 2-furyl-substituted tetrahydroquinolines with maleic anhydride and acryloyl chloride
作者:F. I. Zubkov、V. P. Zaitsev、A. S. Peregudov、N. M. Mikhailova、A. V. Varlamov
DOI:10.1007/s11172-007-0159-0
日期:2007.5
A procedure was developed for the synthesis of hydrogenated furyl-substituted furo[3,2-c]quinolines, pyrano[3,2-c]quinolines, and 4-ethoxy-and 4-(2-oxopyrrolidin-1-yl)quinolines. The reactions of these compounds with acryloyl chloride and maleic anhydride produce epoxyisoindolo[2,1-a]quinoline derivatives through successive acylation at the quinoline nitrogen atom and intramolecular exo-[4+2]-cycloaddition at the furan moiety.
本研究开发了一种氢化呋喃基取代的呋喃并[3,2-c]喹啉、吡喃并[3,2-c]喹啉以及 4-乙氧基和 4-(2-氧代吡咯烷-1-基)喹啉的合成方法。这些化合物与丙烯酰氯和马来酸酐反应,通过喹啉氮原子上的连续酰化和呋喃分子上的分子内外-[4+2]-环加成反应,生成环氧异吲哚并[2,1-a]喹啉衍生物。