Textbook Question
Convert the line-angle drawings into Fischer projections.
(a)
1
views
Ch. 6 - Stereoisomerism: Arrangement of Atoms in Space
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471
Not the one you use?Change textbookSelect a different textbook
Table of contents
- Ch. 2 - General Chemistry Translated: Finding the Electrons114
- Ch. 3 - Alkanes and Cycloalkanes: Properties and Conformational Analysis109
- Ch. 4 - Acids and Bases: Electron Flow144
- Ch. 5 - Chemical Reaction Analysis: Thermodynamics and Kinetics118
- Ch. 6 - Stereoisomerism: Arrangement of Atoms in Space112
- Ch. 7 - Principles of Green (Organic) Chemistry3
- Ch. 8 - Alkenes I: Properties and Electrophilic Additions158
- Ch. 9 - Alkenes II: Oxidation and Reduction150
- Ch. 10 - Alkynes: Electrophilic Addition and Redox Reactions101
- Ch. 11 - Properties and Synthesis of Alkyl Halides: Radical Reactions108
- Ch. 12 - Substitution and Elimination: Reactions of Haloalkanes172
- Ch. 13 - Alcohols, Ethers and Related Compounds: Substitution and Elimination239
- Ch. 14 - Structural Identification I: Infrared Spectroscopy and Mass Spectrometry54
- Ch. 15 - Structural Identification II: Nuclear Magnetic Resonance Spectroscopy93
- Ch. 16 - Metals in Organic Chemistry48
- Ch. 17 - Carbonyl Addition Reactions: Aldehydes and Ketones45
- Ch. 18 - Nucleophilic Acyl Substitution I: Carboxylic Acids18
- Ch. 19 - Nucleophilic Acyl Substitution II: Carboxylic Acid Derivatives39
- Ch. 20 - Enolates: Carbonyl Addition and Substitution13
- Ch. 21 - Conjugated Systems I: Stability and Addition Reactions56
- Ch. 22 - Conjugated Systems II: Pericyclic Reactions54
- Ch. 23 - Benzene I: Aromatic Stability and Substitution Reactions64
- Ch. 24 - Benzene II: Reactions Influenced by the Aromatic Ring62
- Ch. 25 - Amines: Structure, Reactions, and Synthesis27
- Ch. 26 - Amino Acids, Proteins, and Peptide Synthesis9
- Ch. 27 - Carbohydrates, Nucleic Acids, and Lipids54
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471Not the one you use?Change textbook
Chapter 5, Problem 42c
Convert the line-angle drawings into Fischer projections.
(c) 
Verified step by step guidance1
Analyze the given line-angle drawing to identify the carbon chain and the substituents attached to each carbon. Note the stereochemistry (wedges and dashes) to determine the 3D configuration of the molecule.
Determine the longest continuous carbon chain in the molecule and label the carbons sequentially, starting from one end. This will help in organizing the structure for the Fischer projection.
Orient the molecule so that the main carbon chain is vertical, with the most oxidized carbon (e.g., a carbonyl or hydroxyl group) at the top. Ensure that horizontal bonds point toward the viewer (out of the plane) and vertical bonds point away (into the plane).
Translate the 3D configuration into a 2D Fischer projection by placing the substituents on the horizontal and vertical lines. Use the stereochemical information (R/S configuration or wedges/dashes) to ensure the correct placement of groups.
Double-check the Fischer projection to confirm that it accurately represents the stereochemistry and connectivity of the original line-angle drawing.
Verified video answer for a similar problem:
This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
3mWas this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Line-Angle Drawings
Line-angle drawings, also known as skeletal structures, are a shorthand representation of organic molecules where lines represent bonds between atoms. Each vertex or endpoint of a line corresponds to a carbon atom, and hydrogen atoms are typically omitted for clarity. This method simplifies the visualization of complex structures, making it easier to identify functional groups and molecular geometry.
Recommended video:
Guided course
02:46
What is angle strain?
Fischer Projections
Fischer projections are a two-dimensional representation of three-dimensional organic molecules, particularly useful for depicting stereochemistry. In a Fischer projection, the vertical lines represent bonds that are oriented away from the viewer, while horizontal lines represent bonds that are coming towards the viewer. This format is especially important for illustrating the configuration of chiral centers in carbohydrates and amino acids.
Recommended video:
Guided course
09:56Monosaccharides - Drawing Fischer Projections
Stereochemistry
Stereochemistry is the study of the spatial arrangement of atoms in molecules and how this affects their chemical behavior. It is crucial for understanding isomerism, where compounds with the same molecular formula can have different structures and properties. In the context of Fischer projections, recognizing the stereochemical configuration of chiral centers is essential for accurately converting line-angle drawings to Fischer representations.
Recommended video:
1:38Polymer Stereochemistry Concept 1
Related Practice
Textbook Question
Convert the line-angle drawings into Fischer projections.
(b)
1
views
Textbook Question
Figure 6.52 <IMAGE> shows the lipase-catalyzed kinetic resolution of secondary alcohols. Show a reaction coordinate diagram that rationalizes the results obtained.
2
views
Textbook Question
Convert the Fischer projections into line-angle drawings and assign (R) and (S) at each chiral center.
(c)
1
views
Textbook Question
How might you separate enantiomers of 2-phenylpropionic acid?
3
views
Textbook Question
We discuss the reaction of Grignard reagents (organomagnesium compounds) to ketones in Chapter 17. Mechanistically, the reaction proceeds by the nucleophilic addition of a methyl carbanion to the electrophilic carbon of the carbonyl, breaking the C―Oπ bond, resulting in an alkoxide intermediate that is subsequently protonated to produce the 3° alcohol.
(a) Why does this reaction produce a racemic mixture of 3° alcohols?
2
views