22. Carboxylic Acid Derivatives: NAS

Saponification

22. Carboxylic Acid Derivatives: NAS

Saponification

Guided videos.

Learn with Johnny

Go to the course

Guided course

03:27

Practice this topic

Multiple Choice

Which reaction conditions will turn olive oil into a soap?

304

views

Textbook Question

D. N. Kursanov, a Russian chemist, proved that the bond that is broken in the hydroxide-ion-promoted hydrolysis of an ester is the acyl C—O bond, rather than the alkyl C—O bond, by studying the hydrolysis of the following ester under basic conditions:

a. What products contained the O^18 label? b. What product would have contained the O^18 label if the alkyl C—O bond had broken?

411

views

Textbook Question

The intermediate shown here is formed during the hydroxide-ion-promoted hydrolysis of the ester group. Propose a mechanism for the reaction. HO-, H2O—>. + CF3CH2OH —>

311

views

Textbook Question

Predict the products and propose mechanisms for the following reactions. (b)

915

views

Textbook Question

Suppose we have some optically pure (R)-2-butyl acetate that has been 'labeled' with the heavy O-18 isotope at one oxygen atom as shown.

(a) Draw a mechanism for the hydrolysis of this compound under basic conditions. Predict which of the products will contain the O-18 label. Also predict whether the butan-2-ol product will be pure (R), pure (S), or racemized.

658

views

Textbook Question

Propose a mechanism for the base-promoted hydrolysis of γ-butyrolactone:

458

views

Textbook Question

(a) Explain why we speak of acidic hydrolysis of an ester as acid-catalyzed, but of basic hydrolysis as base-promoted.

240

views

Textbook Question

(b) Soap manufacturers always use base to hydrolyze fats, and never acid. Suggest two reasons that basic hydrolysis is preferred.

195

views

Textbook Question

Predict the products of saponification of the following esters.

(a) <IMAGE>

238

views

Textbook Question

Predict the products of saponification of the following esters.

(b) <IMAGE>

274

views

Textbook Question

Predict the products of saponification of the following esters.

221

views

Textbook Question

(b) Would you expect methyl p-methoxybenzoate to undergo saponification faster or slower than methyl benzoate?

188

views

Textbook Question

What are the products of the following reactions? i.

Propose a mechanism for the hydrolysis of N,N-dimethylacetamide (a) under basic conditions.

891

views

Textbook Question

Propose a mechanism for the hydrolysis of N,N-dimethylacetamide (b) under acidic conditions.

704

views

Textbook Question

Propose a mechanism for the basic hydrolysis of benzonitrile to the benzoate ion and ammonia.

607

views

Showing 16 of 16 practice