Ruthenium polypyridyl complex-catalysed aryl alkoxylation of styrenes: improving reactivity using a continuous flow photo-microreactor

摘要

Previously, we reported the ruthenium polypyridyl complex- catalysed aryl alkoxylation reaction of styrenes with aryldiazonium salts. In the developed reaction course, the instability of the diazo- nium salts caused poor product yields. In this context, we focused on the use of a continuous flow photo microreactor as a way to improve the efficacy of the aryl alkoxylation reaction. In this re- port, we describe an improved protocol for the aryl alkoxylation of styrenes catalysed by a ruthenium polypyridyl complex that relies on the use of a continuous flow photo microreactor.