A Versatile and Regiospecific Synthesis of Functionalized 1,3-Diarylisobenzofurans
作者:Jérôme Jacq、Cathy Einhorn、Jacques Einhorn
DOI:10.1021/ol801550a
日期:2008.9.1
A convenient, versatile, and regiospecific synthesis of functionalized 1,3-diarylisobenzofurans has been developed. It involves chemoselective addition of arylmagnesium reagents to the aldehyde function of o-aroylbenzaldehydes, themselves readily obtained by leadtetraacetateoxidation of N-aroylhydrazones of salicylaldehydes. Various functional groups, including nitro, iodo, or ester functionalities
Iodine-Catalyzed Annulation Reaction of <i>Ortho</i>-Formylarylketones with Indoles: A General Strategy for the Synthesis of Indolylbenzo[<i>b</i>]carbazoles
作者:Sundaram Suresh、Veerababurao Kavala、Ching-Fa Yao
DOI:10.1021/acs.joc.2c02868
日期:2023.3.17
The iodine-catalyzed cascade reaction of ortho-formylarylketones with indoles for the synthesis of indolylbenzo[b]carbazoles is reported. The reaction is initiated in the presence of iodine by two successive nucleophilic additions of indoles with an aldehyde group of ortho-formylarylketones, and the ketone does not undergo a nucleophilic addition and only involves in the Friedel–Crafts-type cyclization
报道了邻甲酰基芳基酮与吲哚在碘催化下的级联反应合成吲哚基苯并[ b ]咔唑。该反应在碘存在下通过吲哚与邻甲酰基芳基酮的醛基的两次连续亲核加成引发,酮不进行亲核加成,仅参与 Friedel-Crafts 型环化。测试了多种底物,并通过克级反应证明了该反应的效率。