ORGANIC CHEMISTRY
ORGANIC CHEMISTRY
6th Edition
ISBN: 9781260826791
Author: SMITH
Publisher: MCG
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Chapter 22, Problem 43P
Interpretation Introduction

(a)

Interpretation: The product that is formed from a Michael reaction of the given starting materials by using OEt, EtOH is to be drawn.

Concept introduction: The reaction in which an enolate ion of one carbonyl compound undergoes conjugate addition reaction with the βcarbon of the other α,βunsaturated carbonyl compound is known as Michael reaction. The α,βunsaturated carbonyl compounds are also called as Michael acceptors.

Interpretation Introduction

(b)

Interpretation: The product that is formed from a Michael reaction of the given starting materials by using OEt, EtOH is to be drawn.

Concept introduction: The reaction in which an enolate ion of one carbonyl compound undergoes conjugate addition reaction with the βcarbon of the other α,βunsaturated carbonyl compound is known as Michael reaction. The α,βunsaturated carbonyl compounds are also called as Michael acceptors.

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a. The structure of the bicarbonate (hydrogen carbonate) ion, HCO3-, HCO3 " is best described as a hybrid of several contributing resonance forms, two of which are shown here. HO :0: HO + :Ö: Bicarbonate is crucial for the control of body pH (for example, blood pH 7.4). A more self-indulgent use is in baking soda, where it serves as a source of CO2 CO2 gas, which gives bread and pastry their fluffy constituency. (i) Draw at least one additional resonance form. = (ii) Using curved "electron-pushing" arrows, show how these Lewis structures may be interconverted by movement of electron pairs. (iii) Determine which form or forms will be the major contributor(s) to the real structure of bicarbonate, explaining your answer on the basis of the criteria in Section 1-5.

Chapter 22 Solutions

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