Rhodium-Catalyzed Oxidative<i>ortho</i>-Acylation of Aryl Ketone<i>O</i>-Methyl Oximes with Aryl and Alkyl Aldehydes
作者:Yaxi Yang、Bing Zhou、Yuanchao Li
DOI:10.1002/adsc.201200401
日期:2012.11.12
Friedel–Crafts acylation. Moreover, this reaction proceeds via an unprecedented Rh-catalyzed oxidative ortho-acylation of aryl ketone O-methyl oximes with highly electron-deficient aryl aldehydes followed by a direct addition of the second ortho CH bond to aldehydes in a one-pot reaction, to generate two CC bonds simultaneously.
描述了经由CH键活化的芳基酮O-甲基肟的铑催化的氧化邻位酰化与芳基和烷基醛。交叉偶联反应在相对温和的条件下显示出较高的官能团耐受性和区域选择性,并构成了通向多样化的二芳基酮文库的通用途径,而传统的Friedel-Crafts酰化难以获得。而且,该反应通过空前的Rh催化的芳基酮O-甲基肟与高度缺电子的芳基醛的氧化邻位酰化反应,然后直接加入第二邻位 CH一键反应与醛键结合,同时生成两个CC键。