Concept explainers
(a)
Interpretation:
Show how to prepare pentanoic acid from 1-Pentanol.
Concept introduction:
Carboxylic acid on further oxidation removes the carboxyl carbon as carbon dioxide.
Depending on the reaction conditions, the oxidation state of the remaining organic structure may be higher, lower or unchanged.
Carboxylic acid can be prepared from primary alcohol by oxidation using strong oxidizing agents like chromic acid,
(b)
Interpretation:
Show how to prepare pentanoic acid from Pentanal.
Concept introduction:
Carboxylic acid can be prepared from various ways; oxidation of aldehyde is one of the important methods to prepare carboxylic acid.
Aldehyde and
In aldehyde
In ketone
Aldehyde readily undergoes oxidation to carboxylic acids.
Tollens’ reagent is an ammoniac silver nitrate solution which can be used to detect the presence of aldehyde in an unknown compound.
As the oxidation of the aldehyde proceeds by Tollens’ reagent, silver metal is deposited on the walls of the reaction flask as a shiny mirror.
The reaction can be represented as follows,
(c)
Interpretation:
Show how to prepare pentanoic acid from 1-Pentene.
Concept introduction:
Carboxylic acid can be prepared from various ways; oxidation of aldehyde is one of the important methods to prepare carboxylic acid.
Aldehyde and ketones are one such an important group in the organic compounds. Both of these compounds contain carbonyl group
In aldehyde
In ketone
Carboxylic acid can be prepared from primary alcohol by oxidation using strong oxidizing agents like chromic acid,
Alkenes on acid catalyzed hydration will give alcohol.
(d)
Interpretation:
Show how to prepare pentanoic acid from 1-Butanol.
Concept introduction:
Alkyl or aryl magnesium halides (RMgX) are known as Grignard reagent. The Grignard reaction is an organometallic
Synthesis of Grignard reagent is shown below,
The
Addition of a Grignard reagent to carbon dioxide followed by protonation will produce carboxylic acid.
(e)
Interpretation:
Show how to prepare pentanoic acid from 1-Bromopropane.
Concept introduction:
Alkyl or aryl magnesium halides (RMgX) are known as Grignard reagent. The Grignard reaction is an organometallic chemical reaction in which the Grignard reagent act as nucleophile and attack electrophilic carbon atom that are present within polar bonds to yield a carbon-carbon bond.
Synthesis of Grignard reagent is shown below,
The alkyl halide can be prepared from alcohol through different methods, preparing alkyl halide using halogens is one of the important methods and it is shown below,
Addition of a Grignard reagent to carbon dioxide followed by protonation will produce carboxylic acid.
(f)
Interpretation:
Show how to prepare pentanoic acid from 1-Hexene.
Concept introduction:
Carboxylic acid can be prepared from various ways; oxidation of aldehyde is one of the important methods to prepare carboxylic acid.
Aldehyde and ketones are one such an important group in the organic compounds. Both of these compounds contain carbonyl group
In aldehyde
In ketone
The reaction of
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Chapter 17 Solutions
EP ORGANIC CHEMISTRY-OWL V2 ACCESS
- Compounds that contain an N-H group associate by hydrogen bonding. (a) Do you expect this association to be stronger or weaker than that of compounds containing an O-H group? (b) Based on your answer to part (a), which would you predict to have the higher boiling point, 1-butanol or 1-butanamine?arrow_forwardPart c and darrow_forward[10] 10] Q1. Do the following conversions as directed. Write the complete reaction equation. (a) Benzaldehyde to Benzoic Acid. (b) Propanal to 1-propanal (c) Cyclohexanone to Cyclohexanol (d) Acetaldehyde to Ethyl alcohol (e) Acetone to Iso-propyl alcoholarrow_forward
- Show how to convert 1-butene to these compounds. (a) Butane (b) 2-Butanol (c) 2-Bromobutane (d) 1,2-Dibromobutanearrow_forward2) Provide structures for the following compounds: a) ethyl acetate b) Pentanoic acidarrow_forwardWhat is the product formed when pentyne reacts with disiamylborane? (A) Pentanol (B) Pentanone (C) Pentanal (D) Pentan-2-olarrow_forward
- Draw structures for the following compounds. Show all of the hydrogen atoms in the molecules. (a) ethanol (b) 2-propanol (c) 2-ethyl-5-methylcyclohexanolarrow_forward(4) Write the structure of the following compounds from their IUPAC names. (a) ethanamide (b) methylethanoate (c) propanoic acid (d) 2-butanone (5) Write the structure of the following ethers and amines from their common names (a) methyl propyl (b) trimethylamine (6) Decide whether the following alcohols are polar or nonpolar (a) CH3CH2CH2CH2CH2CH2CH2OH (b) CH3CH2OHarrow_forwardDraw the structural formulas of the following compounds:(a) 2,3-Dimethylpentanal(b) 1,3-Dibromopropanone(c) 4-hydroxy-4-methylhexan-2-onearrow_forward
- In each of the following reactions, two possible organic products can be formed. Draw both organic products in each case and then circle the one formed in greatest quantity in each case. HC (a) 1) NaH, 2) acid (b) CH,CH,OH (c) CH,CH,OH NH2 (d) Oarrow_forwardWrite the reagent or draw structures of the starting material or organic product(s) in the following reactions. If more than one product is formed, identify the major product where possible. (a) (b) HO OH OH H2SO4 ? Cl₂ ? FeCl3arrow_forward(a) Write a chemical test to distinguish between: (i) Chlorobenzene and Benzyl chloride. (ii) Chloroform and Carbon tetrachloride. (b) Why is methyl chloride hydrolysed more easily than chlorobenzene?arrow_forward
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