A Diels-Alder Strategy for the Building of Imidazo[4,5-g]quinoline-4,9-dione Derivatives
作者:Fr�d�ric Alvarez、Abbas Taleb、Jacques Gentili、Pascal Nebois、Rapha�l Terreux、Monique Domard、Alain Thozet、Daphn� Merle、Houda Fillion、Nadia Walchshofer
DOI:10.1002/ejoc.200400803
日期:2005.5
Benzimidazole-4,7-diones 3a and 3b were synthesized and submitted to hetero Diels–Alder reactions with azadienes 4 and 5 to afford imidazo[4,5-g]quinoline-4,9-diones 6–9. The structure of the latter was assigned by X-ray diffraction, 1H NMR NOE DIFF experiments or by a molecular dynamics study. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
合成苯并咪唑-4,7-二酮3a 和3b 并与氮杂二烯4 和5 进行杂Diels-Alder 反应,得到咪唑并[4,5-g]喹啉-4,9-二酮6-9。后者的结构通过 X 射线衍射、1H NMR NOE DIFF 实验或分子动力学研究确定。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)