Concept explainers
(a)
Interpretation:
Whether the given pair of 1, 2-dibromocyclohexane is enantiomers or diastereomer needs to be determined. This also needs to be indicated whether each pair haveidentical or different physical properties.
Concept Introduction :
The stereoisomers having different configurations at all stereocenters are known as enantiomers of each other and if there is a different configuration at only one stereocenter but same at other and both isomers are the non-mirror image of each other, they will be diastereomers.
(b)
Interpretation:
Whether the given pair of 1, 2-dibromocyclohexane is enantiomers or diastereomer needs to be determined. This also needs to be indicated whether each pair haveidentical or different physical properties.
Concept Introduction :
The stereoisomers having different configurations at all stereocenters are known as enantiomers of each other and if there is a different configuration at only one stereocenter but same at other and both isomers are the non-mirror image of each other, they will be diastereomers.
(c)
Interpretation:
Whether the given pair of 1, 2-dibromocyclohexane is enantiomers or diastereomer needs to be determined. This also needs to be indicated whether each pair haveidentical or different physical properties.
Concept Introduction :
The stereoisomers having different configurations at all stereocenters are known as enantiomers of each other and if there is a different configuration at only one stereocenter but same at other and both isomers are the non-mirror image of each other, they will be diastereomers.
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
- 1.Draw both cis- and trans-1,4-dimethylcyclohexane in their conformations. (a) How many stereoisomérs are there of cis-1,4-dimethylcyclohexane, and how many of rans-1,4-dimethylcyclohexane? (b) Are of the structures chiral? (c) What are the stereochemicar relationships among the various stereoisomers of 1,4-dimethylcyclohexane?arrow_forwardWrite the two chair conformations of each of the following and in each part designate whichconformation would be the more stable: (a) cis-1-tert-butyl-3-methylcyclohexane, (b) trans-1-tert-butyl-3-methylcyclohexane, (c) trans-1-tert-butyl-4-methylcyclohexane, ( d) cis-1-tert-butyl-4-methylcyclohexane.arrow_forward(a) which if the structure of trans-1,2-dimethylcyclopentane? (b) which is the most stable conformation of 1-bromo-2-ethylcyclohexane? (c) which is the least stable conformation of 1-bromo-2-ethylcyclohexane? (d) which is the more stable configuration of 1,3-dimethylcyclopentane? *Et = ethylarrow_forward
- Ketones react with alcohols to yield products called acetals. Why does the all-cis isomer of 4-tert-butyl-1,3-cyclohexanediol react readily with acetone and an acid catalyst to form an acetal, but other stereoisomers do not react? In formulating your answer, draw the more stable chair conformations of all four stereoisomers and the product acetal for each one.arrow_forwardFollowing is a planar hexagon representation of L-fucose, a sugar component of the determinants of the A, B, O blood group typing. For more on this system of blood typing, see Chemical Connections: A, B, AB, and O Blood Group Substances in Chapter 25. (a) Draw the alternative chair conformations of L-fucose. (b) Which of them is more stable? Explain.arrow_forwardDraw Newman projections of 1,2-ethanediol for all eclipsed conformations formed by rotation of 0° to 360° about carbon-carbon single bond. Which eclipsed conformation(s) has (have) the lowest and highest energy?arrow_forward
- How to determine stereochemistry of disubstitued cyclohexane molecules, and if they are meso, enantiomers, or diasteroemers?arrow_forwardWhich of the isomeric alcohols having the molecular formula C6H14O are chiral? Which are achiral?arrow_forwardDraw the most stable conformation of(a) trans-1-tert-butyl-2-methylcyclohexane.arrow_forward
- Consider 1-bromopropane, CH3CH2CH2Br. (a) Draw a Newman projection for the conformation in which CH3 and -Br are anti (dihedral angle 180°). (b) Draw Newman projections for the conformations in which - CH3 and -Br are gauche (dihedral angles 60° and 300°). (c) Which of these is the lowest energy conformation? (d) Which of these conformations, if any, are related by reflection?arrow_forwardConsider 1-bromopropane, CH3CH2CH2Br. (a) Which of these is the lowest energy conformation?arrow_forwardDraw the two chair conformations of the following substituted cyclohexanes. In each case, label the more stable conformation.(a) trans-1-ethyl-4-methylcyclohexanearrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningOrganic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning