Overcoming steric effects in the coupling reaction of alkyloxycarbonyloxymethyl (AOCOM) halides with phenols: an efficient synthesis of AOCOM phenolic prodrugs
作者:Joshua D. Thomas、Kenneth B. Sloan
DOI:10.1016/j.tetlet.2006.10.160
日期:2007.1
Steric hindrance is a key factor in the coupling reaction of AOCOM halides with phenols. Sterically unhindered alkoxy groups favor the formation of acylated phenol. Under phase-transfer conditions, alkylated phenol is favored regardless of steric hindrance.
立体位阻是AOCOM卤化物与酚类偶联反应的关键因素。立体上不受阻碍的烷氧基有利于酰化苯酚的形成。在相转移条件下,无论空间位阻如何,烷基化苯酚都是有利的。