Pd-catalyzed direct oxidative mono-aroyloxylation of O-aralkyl substituted acetoxime ethers
作者:Ling-Yan Shao、Chao Li、Ying Guo、Kun-Kun Yu、Fei-Yi Zhao、Wen-Li Qiao、Hong-Wei Liu、Dao-Hua Liao、Ya-Fei Ji
DOI:10.1039/c6ra16105g
日期:——
which should undergo a mechanistic pathway of six, seven, or even eight-membered exo-cyclopalladated intermediates. In addition, the acetoxime directing group can be readily removed through N–O bond selective cleavage at a late stage, providing a potential utility for the preparation of valuable functionalized aromatic alcohols.
已经开发出了通过直接Csp 2 -H键活化,以高选择性的钯催化O-芳烷基取代的肟肟醚的邻-单-芳酰氧基化反应,并以简单的exo- acetoxime作为指导基团。掩蔽aralkylalcohols和各种芳族酸伙伴的宽范围是与该转换,它应进行六个,七个,或甚至一种机械途径相容八元外-cyclopalladated中间体。此外,在后期可通过N–O键选择性裂解轻松除去乙酰肟导向基团,为制备有价值的功能化芳族醇提供了潜在的效用。