o-*** methyl ether
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The neighboring *** methyl ether produced is black in color – what causes this?
May I ask the original poster: Is a catalyst required for the production of neighbor *** methyl ether? If necessary, what is the main component of the catalyst? It is recommended to pay attention to checking for any catalyst powder that may have been brought in.
The possible reasons are too high a reaction temperature, as well as an excessively long reaction time. We encountered a similar situation: the substance remained yellow at the end of the reaction, but it changed color after being left overnight. It’s also possible that it has been oxidized