Regioselective Mg-Promoted C-Acylation of Stilbene and Acenaphthylene Derivatives
作者:Ikuzo Nishiguchi、Yoshimasa Yamamoto、Masahiro Sakai、Toshinobu Ohno、Yoshio Ishino、Hirofumi Maekawa
DOI:10.1055/s-2002-25372
日期:——
Treatment of stilbene and acenaphthylene derivatives with Mg turnings in the presence of aliphatic acid anhydrides and trimethylsilyl chloride (TMSCl) in N,N-dimethylformamide (DMF) brought about a facile and efficient cross-coupling to give C-acylation products in moderate to good yields. The reaction may be initiated by electron transfer from magnesium to the carbon-carbon double bonds of the substrates
在 N,N-二甲基甲酰胺 (DMF) 中,在脂肪酸酐和三甲基氯硅烷 (TMSCl) 的存在下,用 Mg 车屑处理二苯乙烯和苊衍生物,产生了一种简便有效的交叉偶联,从而得到中等至良好的 C-酰化产物产量。该反应可以通过从镁到底物的碳-碳双键的电子转移而引发,以产生相应的阴离子物质,随后用酸酐进行区域选择性亲电酰化。