Anodic oxidation of methylbenzenes. Synthetic routes to certain cyclohexa-1,4-dienes
摘要:
The anodic methoxylation of a series of methylbenzenes (mesitylene, pseudocumene, hemimellitene, pentamethylbenzene, and hexamethylbenzene) afforded chain methoxylated products as well as nuclear-addition products. For nuclear-addition products both cis/trans isomers are possible. In the cyclohexa-1,4-dienes obtained from these substrates the cis/trans ratio found is different. A probable mechanism is provided.