Sulfuric Acid → 4-Oxo-1-(p-tolyl)cyclohexanecarbonitrile

Participants

Reaction Steps

Following the procedure of Example 1, Part C, but substituting 39.3 gm. (0.145 mole) of 2-carbomethoxy-4-cyano-4-(p-tolyl)cyclohexanone (prepared in Part B, above) for the 29.8 gm. of the 2-carbomethoxy-4-(p-chlorophenyl)-4-cyanocyclohexanone and using 960 ml. glacial acetic acid and 480 ml. of 10 percent aqueous sulfuric acid instead of the 660 ml. and 330 ml., respectively, there is obtained after recrystallization from a mixture of diethyl ether and petroleum ether 22.84 gm. (74% yield) of 4-cyano-4-(p-tolyl)cyclohexanone having a melting range at 79° to 82° C.

Provenance & Evidence