Synthesis of indenoindene-fused α-methylene-γ-butyrolactones via a tandem intra- and intermolecular Friedel–Crafts reaction
作者:Bo Ram Park、Se Hee Kim、Yu Mi Kim、Jae Nyoung Kim
DOI:10.1016/j.tetlet.2011.01.153
日期:2011.4
An efficient synthesis of indenoindene-fused α-methylene-γ-butyrolactones was carried out via a tandem intra- and intermolecular Friedel–Crafts reaction from the spiro-lactone, which can be easily prepared from ninhydrin by indium-mediated Barbier reaction of cinnamyl bromide.
通过螺内酯的串内和分子间Friedel-Crafts反应,可以高效地合成茚并茚基稠合的α-亚甲基-γ-丁内酯,该反应可通过茚三酮通过铟介导的肉桂基巴比耶反应Barbier反应轻松地由茚三酮制备。 。