The Preparation of: 1. 1-(p-Methoxyphenyl)-2,6-dicarbethoxy-5-amino-cyclohexenone-3. 2. 1-(p-Methoxyphenyl)-2,6-dicarbethoxy-4-cinnamoyl-cyclohexane-dione-3,5. 3. diidodo derivative of 1-(p-Hydroxyphenyl)-2,6-dicarbethoxy-cyclohexane-dione-3,5.
For this type of reaction to tabs place, the methylene group requires the activating influence of an adjacent CC, -CN, or -NO2 grouping. A heterocyclic, or an aromatic group, or a conjugated system have the same effect.
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