JIethyl isopropyl ketone did not undergo the 1Iichael condensation with illethyl vinyl ketone under the reactions used in the present study. While the acyclic ketones showed little or no (0-l, j., jyc) tendency to add to methyl vinyl ketone, the cyclic ketones, cyclopentanone, cyclohexanone, and 2-niethylcyclohexane, reacted readily to give fair to good yields of condensation products. Cyclopentanone, when converted to its anion, was acetoethylated ...