Concept explainers
(a)
Interpretation:
The configuration of asymmetric centers in the given compound has to be given.
Concept introduction:
Configurations of Asymmetric centers are assigned by following Cahn-Ingold-Prelog system.
According to Cahn-Ingold-Prelog system,
The group attached to asymmetric center should be ranked based on the
Check the direction of arrow drawn in the direction of decreasing priority. If the arrow points clockwise direction, then the compound has R configuration. If the arrow points counterclockwise direction, then the compound has S configuration. If the group with lowest priority is not bonded by a hatched wedge, then interchange this group (lowest priority) by group bonded to hatched wedge and draw the arrow in priority order but the configuration is assigned as just reverse.
(b)
Interpretation:
The configuration of asymmetric centers in the given compound has to be drawn.
Concept introduction:
Configurations of Asymmetric centers are assigned by following Cahn-Ingold-Prelog system.
According to Cahn-Ingold-Prelog system,
The group attached to asymmetric center should be ranked based on the atomic number of atom which directly connected to asymmetric center. The higher the atomic number of atom, higher the priority. If there is tie, then consider the next atoms attached to the connected atom and so on.
Check the direction of arrow drawn in the direction of decreasing priority. If the arrow points clockwise direction, then the compound has R configuration. If the arrow points counterclockwise direction, then the compound has S configuration. If the group with lowest priority is not bonded by a hatched wedge, then interchange this group (lowest priority) by group bonded to hatched wedge and draw the arrow in priority order but the configuration is assigned as just reverse.
(c)
Interpretation:
The configuration of asymmetric centers in the given compound has to be determined.
Concept introduction:
Configurations of Asymmetric centers are assigned by following Cahn-Ingold-Prelog system.
According to Cahn-Ingold-Prelog system,
The group attached to asymmetric center should be ranked based on the atomic number of atom which directly connected to asymmetric center. The higher the atomic number of atom, higher the priority. If there is tie, then consider the next atoms attached to the connected atom and so on.
Check the direction of arrow drawn in the direction of decreasing priority. If the arrow points clockwise direction, then the compound has R configuration. If the arrow points counterclockwise direction, then the compound has S configuration. If the group with lowest priority is not bonded by a hatched wedge, then interchange this group (lowest priority) by group bonded to hatched wedge and draw the arrow in priority order but the configuration is assigned as just reverse.
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Organic Chemistry
- Which of the following compounds is chiral. H3C H;C H:C CH, H;C CH CH3 CH3 Barrow_forwardStructure A Br C H3C H CH2CH3 Structure B CH3 BrC H CH2CH3 Determine the relationship between the structures above. Are they the same molecule, constitutional isomers, or stereoisomers? If A and B are stereoisomers, futher classify them as diastereomers or enantiomers. OA and B are the same molecule OA and B are constitutional isomers OA and B are stereoisomers and diastereomers OA and B are stereoisomers and enantiomersarrow_forwardClassify the folowing pair of molecules as enantimoers or diastereomersarrow_forward
- Following is a planar hexagon representation for one isomer of 1,2,4-trimethylcyclohexane. Draw the alternative chair conformations of this compound and state which of the two is more stable.arrow_forwardDetermine the absolute configuration of the asymmetric center in the following compound.arrow_forward#23arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningMacroscale and Microscale Organic ExperimentsChemistryISBN:9781305577190Author:Kenneth L. Williamson, Katherine M. MastersPublisher:Brooks ColeOrganic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning