All the following questions concern ethyl (2-oxocyclohexane)carboxylate.

(a) Write a chemical equation showing how you could prepare ethyl (2 oxocyclohexane)car-boxylate by a Dieckmann reaction.
(b) Write a chemical equation showing how you could prepare ethyl (2-oxocyclohexane)- carboxylate by acylation of a ketone.
(c) Write structural formulas for the two most stable enol forms of ethyl (2-oxocyclohexane) carboxylate.
(d) Write the three most stable resonance forms for the most stable enolate derived from ethyl (2-oxocyclohexane)carboxylate.
(e) Show how you could use ethyl (2-oxocyclohexane)carboxylate to prepare 2 methylcyclohexanone.

Transcribed Image Text:

COCH CH Ethyl (2-oxocyclohexane)carboxylate (CH,-CHCH)