Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 21: Q30P (page 1007)

What is the configuration about each of the asymmetric centres in aspartame?

Short Answer

Expert verified

The answer is:

Configuration of Aspartame

Step by step solution

01

Step-by-Step Solution Step 1: Aspartame

Aspartame is an essential artificial sweetener, much sweeter than sugar. It is a compound containing carbon, nitrogen, oxygen, and hydrogen.

02

Explanation

The configuration of the asymmetric centers is shown below.

Configuration of Aspartame

Both the asymmetric centers in the compound is of S configuration.

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

Glutathione is a tripeptide whose function is to destroy harmful oxidizing agents in the body. Oxidizing agents are bought to be responsible for some of the effects of aging and to play a causative role in cancer.

Glutathione removes oxidizing agents by reducing them. In the process, glutathione is oxidized, resulting in the formation of a disulphide bond between two glutathione molecules. An enzyme subsequently reduces the disulphide bond, returning glutathione to its original condition so it can react with another oxidizing agent.

a. What amino acids make up glutathione?

b. What is unusual about glutathione’s structure?

a. What percentage of the α-amino group of lysine will be protonated at its pI?<25%50% >75%

b. Answer the same question for theε-amino group of lysine.

Draw the tetrapeptide Ala-Thr-Asp-Asn and indicate the peptide bonds.

Treatment of a polypeptide with 2-mercaptoethanol yields two polypeptides with the following primary structures:

Val-Met-Tyr-Ala-Cys-Ser-Phe-Ala-Glu-Ser

Ser-Cys-Phe-Lys-Cys-Trp-Lys-Tyr-Cys-Phe-Arg-Cys-Ser

Treatment of the original intact polypeptide with chymotrypsin yields the following peptides:

1. Ala, Glu, Ser 3. Tyr, Val, Met 5. Ser, Phe, 2 Cys, Lys, Ala, Trp

2. 2 Phe, 2 Cys, Ser 4. Arg, Ser, Cys 6. Tyr, Lys

Determine the positions of the disulfide bridges in the original polypeptide.

What amino acid is formed using the N-phthalimidomalonic ester synthesis when the following alkyl halides are used in the third step?

(a)

(b)CH3SCH2CH2Br
See all solutions

Recommended explanations on Chemistry Textbooks

Chemical Reactions

Read Explanation

Making Measurements

Read Explanation

Nuclear Chemistry

Read Explanation

Physical Chemistry

Read Explanation

Inorganic Chemistry

Read Explanation

Kinetics

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