Nitric Acid → 2,5-Cyclohexadiene-1,4-dione, 2,3,5-trimethyl-

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Reaction Steps

Also, in the process described in Japanese Pat. Publication No. 38063/70 (German Pat. OLS No. 1,814,652), 2,3,6-trimethylphenol is dissolved in acetic acid and oxidized with a dilute nitric acid using sodium nitrite as a catalyst to obtain trimethyl-p-benzoquinone in maximum yield of 69.6 percent. This process is simple and is considered to be a good one. However, the yield is a little low.

Provenance & Evidence