The aromatic aldehyde as a traceless directing group for the regionselective C-H alkylation catalyzed by rhodium(III) under aerobic atmospheric conditions has been developed. The process involves an aldehyde assisted direct addition of C-H bond to unsaturated electrophiles of acrylates or acrylic acids, and the subsequent decarbonylation. A trace amount of water is found to favor the reaction.
已经开发出芳香醛作为有氧大气条件下
铑(III)催化的区域选择性CH烷基化的无痕导向基团。该方法涉及醛辅助的CH键直接加成到
丙烯酸酯或
丙烯酸的不饱和亲电子体上,以及随后的脱羰作用。发现痕量的
水有利于该反应。