Lewis Acid Assisted Nickel‐Catalyzed Cross‐Coupling of Aryl Methyl Ethers by C−O Bond‐Cleaving Alkylation: Prevention of Undesired β‐Hydride Elimination
作者:Xiangqian Liu、Chien‐Chi Hsiao、Indrek Kalvet、Matthias Leiendecker、Lin Guo、Franziska Schoenebeck、Magnus Rueping
DOI:10.1002/anie.201510497
日期:2016.5.10
In the presence of trialkylaluminum reagents, diverse aryl methyl ethers can be transformed into valuable products by C−O bond‐cleaving alkylation, for the first time without the limiting β‐hydride elimination. This new nickel‐catalyzed dealkoxylative alkylation method enables powerful orthogonal synthetic strategies for the transformation of a variety of naturally occurring and easily accessible anisole
在存在三烷基铝试剂的情况下,可以通过C-O键裂解烷基化将多种芳基甲基醚首次转化为有价值的产物,而不会限制β-氢化物的消除。这种新的镍催化脱烷氧基化烷基化方法可实现强大的正交合成策略,用于转化多种天然存在且易于获得的苯甲醚衍生物。首先利用芳族甲氧基的导向和/或活化性能,然后在随后的偶联过程中将其用烷基链取代。