Addition of Grignard Reagents to Aryl Acid Chlorides: An Efficient Synthesis of Aryl Ketones
作者:Xiao-jun Wang、Li Zhang、Xiufeng Sun、Yibo Xu、Dhileepkumar Krishnamurthy、Chris H. Senanayake
DOI:10.1021/ol052150q
日期:2005.12.1
addition of Grignard reagents to acid chlorides in the presence of bis[2-(N,N-dimethylamino)ethyl] ether proceeds selectively to provide aryl ketones in high yields. A possible tridentate interaction between Grignard reagents and bis[2-(N,N-dimethylamino)ethyl] ether moderates the reactivity of Grignard reagents, preventing the newly formed ketones from nucleophilic addition by Grignard reagents.
[化学反应:见正文]。在双[2-(N,N-二甲基氨基)乙基]醚存在下,将格氏试剂直接添加到酰氯中选择性地进行,以高收率提供芳基酮。格氏试剂与双[2-(N,N-二甲基氨基)乙基]醚之间可能的三齿相互作用会减缓格氏试剂的反应性,从而防止新形成的酮被格氏试剂亲核加成。