EP ESSENTIAL ORG.CHEM.-MOD.MASTERING
EP ESSENTIAL ORG.CHEM.-MOD.MASTERING
3rd Edition
ISBN: 9780133858501
Author: Bruice
Publisher: PEARSON CO
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Chapter 13, Problem 36P
Interpretation Introduction

Interpretation:

The structures of four β hydroxyaldehydes obtained from a mixture of butanal and penatanal in basic aqueous medium has to be drawn.

Concept introduction:

Two molecules of aldehyde or ketone combines to form a β- hydroxyaldehyde or a β- hydroxyketone in presence of a strong base by the removal of molecules of water is called aldol condensation.

Crossed aldol addition is an reaction where four products are formed when two different carbonyl compound are used.

The reaction with OH ion gives two different enolate ions.

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Ethyl butyrate, CH3CH2CH2CO2CH2CH3CH3CH2CH2CO2CH2CH3, is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple.  Its fragrance and taste are often associated with fresh orange juice, and thus it is most commonly used as orange flavoring. It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst (H+H+): CH3CH2CH2CO2H(l)+CH2CH3OH(l)H+⟶CH3CH2CH2CO2CH2CH3(l)+H2O(l) Given 8.45 gg of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100%% yield? Express your answer in grams to three significant figures.   A chemist ran the reaction and obtained 5.50 gg  of ethyl butyrate. What was the percent yield? Express your answer as a percent to three significant figures.   The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0%% yield. How many grams would be produced from 8.45 gg of butanoic acid and excess…
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