Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 5: Problem 66

The reaction \(\left.\left.\right|_{\text {CHO }} ^{\text {CHO }} \stackrel{\mathrm{NaOH}}{\longrightarrow}\right|_{\text {COONa }}{\text { CH }_{2} \mathrm{OH}}\) is an example of (a) intramolecular aldol condensation (b) mixed Cannizzaro reaction (c) intramolecular Cannizzaro reaction (d) crossed Cannizzaro reaction \(\Omega\)

Short Answer

Expert verified
\(\left.\left.\right|_{\text {CHO }} ^{\text {CHO }}\stackrel{\mathrm{NaOH}}{\longrightarrow}\right|_{\text {COONa }} \text{CH}_{2} \mathrm{OH}\) a) Intramolecular aldol condensation b) Mixed Cannizzaro reaction c) Intramolecular Cannizzaro reaction d) Crossed Cannizzaro reaction Answer: c) Intramolecular Cannizzaro reaction

Step by step solution

01

Write down the given reaction

The given reaction is: \(\left.\left.\right|_{\text {CHO }} ^{\text {CHO }}\stackrel{\mathrm{NaOH}}{\longrightarrow}\right|_{\text {COONa }} \text{CH}_{2} \mathrm{OH}\)
02

Identify the reactant and product

In the reaction, the reactant molecule has two aldehyde groups (CHO). It reacts with sodium hydroxide (NaOH) to form a product with a carboxylate group (COONa) and a hydroxy group (CH2OH) on adjacent carbon atoms.
03

Determine if it is an aldol condensation

In an aldol condensation, an aldehyde or a ketone reacts with itself or another carbonyl compound in the presence of a base, leading to the formation of a β-hydroxy aldehyde or a β-hydroxy ketone. Since the product in the given reaction has a β-hydroxy group and a carboxylate group, we can conclude that this is not an example of an aldol condensation.
04

Determine if it is a Cannizzaro reaction

A Cannizzaro reaction is a redox reaction that involves the oxidation of an aldehyde to a carboxylic acid and the reduction of another aldehyde group to a primary alcohol in the presence of a base. Since the given reaction involves the conversion of an aldehyde group to a carboxylate group and another aldehyde group to a primary alcohol, this is an example of a Cannizzaro reaction. Now we need to determine if it is mixed, intramolecular, or crossed Cannizzaro reaction.
05

Identify the type of Cannizzaro reaction

- A mixed Cannizzaro reaction occurs between two different aldehydes with no alpha-hydrogen atoms. - An intramolecular Cannizzaro reaction occurs when both aldehyde groups are present in a single molecule, and the reaction takes place within the molecule. - A crossed Cannizzaro reaction occurs when two different aldehyde reactants with no alpha-hydrogen atoms are used in the reaction. In the given reaction, the aldehyde groups are present on a single molecule, and the reaction takes place within the molecule. Therefore, this is an example of an intramolecular Cannizzaro reaction. So, the correct answer is (c) intramolecular Cannizzaro reaction.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Aspirin (acetyl salicylic acid) is prepared by heating salicylic acid with acetic anhydride. In an experiment, \(5 \mathrm{~g}\) of salicylic acid is heated with \(8 \mathrm{~g}\) of acetic anhydride. The theoretical yield of aspirin is (a) \(5.46 \mathrm{~g}\) (b) \(3.84 \mathrm{~g}\) (c) \(6.52 \mathrm{~g}\) (d) \(4.95 \mathrm{~g}\)

CC(C)=O (A) $\stackrel{\text { dil. } \mathrm{H}_{2} \mathrm{SO}_{4}}{\longrightarrow}(\mathrm{B})$ The product (B) in the above reaction is (a) Hexan-2-one (b) 3, 3-Dimethyl butan-2-one (c) 2, 3-Dimethyl butan-2-ol (d) 4-Hydroxy-4-methyl pentan-2-one

O=C1C=CCCC1Cl The IUPAC name of (a) 2 -chlorocyclohex-5-en-1-one (b) 6 -chlorocyclohex-2-en-1-one (c) 4 -chloro-3-oxocyclohex-l-ene (d) 1 -chloro-2-oxocyclohex-3-ene

Directions: Each question contains Statement- 1 and Statement- 2 and has the following choices (a), (b), (c) and (d), out of which ONLY ONE is correct. (a) Statement- 1 is True, Statement- 2 is True; Statement- 2 is a correct explanation for Statement- 1 (b) Statement- 1 is True, Statement- 2 is True; Statement- 2 is NOT a correct explanation for Statement- 1 (c) Statement- 1 is True, Statement- 2 is False (d) Statement- 1 is False, Statement- 2 is True Statement 1 Acetals and ketals are unstable in aqueous acid conditions, but quite stable to alkaline conditions. and Statement 2 A weaker base like (OH) cannot displace a stronger base like (OR) found in acetals and ketals.

Wolff-Kishner reduction of benzophenone gives (a) benzene (b) toluene (c) diphenylmethane (d) ethylbenzene
See all solutions

Recommended explanations on Chemistry Textbooks

Inorganic Chemistry

Read Explanation

Organic Chemistry

Read Explanation

Ionic and Molecular Compounds

Read Explanation

The Earths Atmosphere

Read Explanation

Making Measurements

Read Explanation

Nuclear Chemistry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free