Given that reaction of pyrrolidine enamine of cyclohexanone with but-2-ene-3-one followed by hydrolysis and base treatment yields the product shown. Each step with its mechanism is to be given. Concept introduction: The steps involved in the reaction are i) Michael addition of enamine to cyclohexanone ii) A proton transfer iii) Hydrolysis to remove the amine iv) Abstraction of a proton from the diketone v) internal aldol reaction to form the second ring vi) Protonation and dehydration. To give: The mechanism of each step involved in reacting pyrrolidine enamine of cyclohexanone with but-2-ene-3-one followed by hydrolysis and base treatment to produce the product shown.

Question

10.00 g of Compound X with molecular formula C₂Hg are burned in a constant-pressure calorimeter containing 40.00 kg of water at 25 °C. The temperature of the water is observed to rise by 2.604 °C. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.) Calculate the standard heat of formation of Compound X at 25 °C. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.

Answer 1

Question

Chapter 23.SE, Problem 64AP

Interpretation Introduction

Interpretation:

Given that reaction of pyrrolidine enamine of cyclohexanone with but-2-ene-3-one followed by hydrolysis and base treatment yields the product shown. Each step with its mechanism is to be given.

Concept introduction:

The steps involved in the reaction are i) Michael addition of enamine to cyclohexanone ii) A proton transfer iii) Hydrolysis to remove the amine iv) Abstraction of a proton from the diketone v) internal aldol reaction to form the second ring vi) Protonation and dehydration.

To give:

The mechanism of each step involved in reacting pyrrolidine enamine of cyclohexanone with but-2-ene-3-one followed by hydrolysis and base treatment to produce the product shown.

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10.00 g of Compound X with molecular formula C₂Hg are burned in a constant-pressure calorimeter containing 40.00 kg of water at 25 °C. The temperature of the water is observed to rise by 2.604 °C. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.) Calculate the standard heat of formation of Compound X at 25 °C. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.

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