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
Rapid Cesium Fluoride Catalyzed Synthesis of 5-Aryloxy-1-phenyl-1Htetrazoles via Nucleophilic Aromatic Substitution
作者:Khalid Mohammed Khan、Itrat Fatima、Shahnaz Perveen、Syed Muhammad Saad
DOI:10.2174/1570178617999200728211046
日期:2021.5
A nucleophilic aromatic substitution via a new and facile cesiumfluoridecatalyzed synthetic approach to get 5-aryloxy-1-phenyl-1H-tetrazoles was developed. Dual usage of cesiumfluoride as a nucleophilic catalyst as well as an electrophilic catalyst afforded the desired products at room temperature in a short reaction time without purification in high yields. This simple but useful reaction may be