Skip to main content
Ch.4 Introduction to Organic Compounds
Frost - General, Organic and Biological Chemistry 4th Edition
Frost4th EditionGeneral, Organic and Biological ChemistryISBN: 9780134988696Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoFrost 4th EditionCh.4 Introduction to Organic CompoundsProblema 36b
Capitolo 1, Problema 36b

Mark the chiral centers in the following molecules, if any, with an asterisk (*):
(b) Chemical structure of pantothenic acid, labeled as a B vitamin, with hydroxyl and amine groups.

Guida verificata passo dopo passo
1
Identify the definition of a chiral center: A chiral center is a carbon atom that is bonded to four different groups or atoms. This property makes the molecule non-superimposable on its mirror image.
Examine the structure of Pantothenic Acid (provided in the image) and locate all carbon atoms in the molecule.
For each carbon atom, check the groups or atoms attached to it. If a carbon atom is bonded to four different groups, mark it as a chiral center with an asterisk (*).
Pay special attention to carbon atoms in the molecule that are part of functional groups or branching chains, as these are more likely to be chiral centers.
Once all chiral centers are identified, ensure that no symmetry or identical groups invalidate the chirality of the marked carbons.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
3m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Chirality

Chirality refers to the geometric property of a molecule that makes it non-superimposable on its mirror image. Molecules that possess chirality have at least one chiral center, typically a carbon atom bonded to four different substituents. This property is crucial in biochemistry, as chiral molecules can have different biological activities depending on their orientation.
Video consigliato:
Percorso guidato
1:39
Chirality Example 1

Chiral Centers

A chiral center, often a carbon atom, is a point in a molecule where the arrangement of atoms or groups leads to chirality. Identifying chiral centers is essential for understanding the stereochemistry of a compound, as these centers determine the molecule's optical activity and its interaction with biological systems. In practice, marking chiral centers with an asterisk (*) helps in visualizing and analyzing molecular structures.
Video consigliato:
Percorso guidato
2:37
Chirality Concept 1

Stereochemistry

Stereochemistry is the branch of chemistry that deals with the spatial arrangement of atoms in molecules and the impact of this arrangement on their chemical properties and reactions. It encompasses concepts such as chirality, isomerism, and conformational analysis. Understanding stereochemistry is vital for fields like drug design, where the efficacy of a compound can depend on its three-dimensional structure.
Video consigliato:
Percorso guidato
1:30
D vs L Enantiomers Concept 1
Pratica correlata
Domanda del libro di testo

Mark the chiral centers in the following molecules, if any, with an asterisk (*):

(a)

595
views
Domanda del libro di testo

Mark the chiral centers in the following molecules, if any, with an asterisk (*):

(d)

579
views
Domanda del libro di testo

Determine if each of the following cycloalkanes or alkenes can exist as cis–trans stereoisomers. For those that can, draw the two isomers. Label each of the isomers you drew as the cis stereoisomer or the trans stereoisomer.

(b) CH3CH2CH2CH2CH=CH2

733
views
Domanda del libro di testo

Convert each of the Lewis structures shown into a condensed structural formula:

(c)

742
views
Domanda del libro di testo

Mark the chiral centers in the following molecules, if any, with an asterisk (*):

(d)

631
views
Domanda del libro di testo

Convert the condensed structures shown to skeletal structures.

(a)

655
views