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Concept explainers
a)
Interpretation:
Starting from 1-pentanol how pentanal can be prepared is to be shown.
Concept introduction:
Primary alcohols are oxidized to carboxylic acids by strong oxidizing agents like CrO3 and KMnO4 etc. The oxidation can be stopped in the
To show:
How to prepare pentanal starting from 1-pentanol.
b)
Interpretation:
Starting from 1-hexene how pentanal can be prepared is to be shown.
Concept introduction:
When treated with ozone,
To show:
How to prepare pentanal starting from 1-hexene.
c)
Interpretation:
Starting from methylpentanoate how pentanal can be prepared is to be shown.
Concept introduction:
To show:
How to prepare pentanal starting from methylpentanoate.
d)
Interpretation:
Starting from 1-pentene how pentanal can be prepared is to be shown.
Concept introduction:
Alkenes when subjected to hydroboration-oxidation yield primary alcohols which when oxidized with Dess-Martin periodinate in dichloromethane yield aldehydes.
To show:
How to prepare pentanal starting from 1-pentene.
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Chapter 19 Solutions
Organic Chemistry
- Which of these reagent(s) will not react with HOCH2CH2CH2COOH? A) NaCN in ethanol B) C2H5OH in the presence of an acid catalyst. C) (CH3CO)2O D) Concentrated H2SO4arrow_forwardDraw the structure of the following compounds which parent names have been traced to a common name; (a)5-methyl-4-nitroimidazole (b)2-chloro-4-methoxythiazole.arrow_forwardName the following aldehydes and ketones according to IUPAC rules: lel CH3ČCH,CH,CH,ČCH,CH3 (b) CH2CH2CHO ta) CH3CH2CCHCH3 tel Id) ÇH3 H CH3CH=CHCH2CH;CH "сно CH3arrow_forward
- PLEASE BE VERY CLEAR IN YOUR WRITINGarrow_forwardc) rite in the reagent(s) over the arrow. a) C6H5N₂+ b) C6H5C=N H3C- An OH H₂C → benzene H3C benzylamine CI CH3arrow_forwardDraw structural formulas for these ketones. (a) Ethyl isopropyl ketone (b) 2-Chlorocyclohexanone (c) 2,4-Dimethyl-3-pentanone (d) Diisopropyl ketone (e) Acetone (f) 2,5-Dimethylcyclohexanonearrow_forward
- Draw the product formed when CH3CH2C=CH is treated with each of the following sets of reagents: (a) H2O, H2SO4, HgSO4; and (b) R2BH, followed by H2O2, HO−.arrow_forward1. Give the IUPAC names for the following alcohols. (a) OH OH (b) ОН (c) HO CH3CHCH2CHCHCH3 CH2CH2CCH3 -CH3 CH3 CH3 CH3 (d) (e) (f) CH3 HO HO OHarrow_forwardWrite the products of the following reactions:(a) CH3CH2CH (H3 )COOH + NaOH- ?(b) 2,2-Dimethylpentanoic acid + KOH-?arrow_forward
- 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) Part A Given 7.30 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. Part B A chemist ran the reaction and obtained 5.95 gg of ethyl butyrate. What was the percent yield? Express your answer as a percent to three significant figures. Part C The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0%% yield. How many grams would be produced from 7.30 gg of…arrow_forwardEthyl 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…arrow_forwardName the following aldehydes and ketones: (a) (b) CH2CH2CHO CH3CH2CCHCH3 CH3 Draw structures corresponding to the following names: (b) 4-Chloropentan-2-one (e) 3-Methylbut-3-enalarrow_forward
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