作者:Brendan J. Hussey、Robert A.W. Johnstone、Jan D. Entwistle
DOI:10.1016/0040-4020(82)80091-4
日期:1982.1
Previous work has shown that, after converting phenols into suitable phenolic ethers, the aromatic CH bond of the original phenol can be reductively cleaved heterogeneously to give a CH bond through the use of molecular hydrogen or hydrogen donors together with a transition metal catalyst. The present work provides a method for selectively replacing a phenolic OH group by H in just a few minutes
先前的工作表明,在将酚转化为合适的酚醚后,可以通过使用分子氢或氢供体以及过渡金属,异质地裂解原始酚的芳族CH键,使其异质裂解,形成CH键。催化剂。与先前使用氢供体所需的2至4小时以及在分子氢所需的压力下的数小时相比,本发明提供了一种在短短几分钟内用H选择性地取代酚式OH基的方法。各种基团均适用于从苯酚制备所需的酚醚,但最好的基团是具有强吸电子性的杂芳族实体。溶剂似乎在这种非均相反应中起着重要作用,并对其机理进行了讨论。