
Concept explainers
(a)
Interpretation:
The configuration of each stereo center in the given molecule is to be designated as R or S.
Concept introduction:
When assigning priorities to substituents, the atom having the greater
When the fourth priority substituent is pointing away (it is attached by a dash bond) and the first, second, and third priority substituents are arranged clockwise, the configuration is R.
When the fourth priority substituent is pointing away (it is attached by a dash bond) and the first, second, and third priority substituents are arranged counterclockwise, the configuration is S.
If the fourth priority substituent is attached by a wedge bond, then the clockwise or counterclockwise arrangement of the first, second, and third priority substituents is determined and that arrangement is reversed before assigning R or S.
If the fourth priority substituent is in the plane of the page, then it is switched with the substituent that points away. Then the clockwise or counterclockwise arrangement of the first, second, and third priority substituents is determined and that arrangement is reversed before assigning R or S.
(b)
Interpretation:
The configuration of each stereo center in the given molecule is to be designated as R or S.
Concept introduction:
When assigning priorities to substituents, the atom having the greater atomic number has higher priority. In case of comparison between isotopes, the one having the greater atomic mass gets higher priority.
When the fourth priority substituent is pointing away (it is attached by a dash bond) and the first, second, and third priority substituents are arranged clockwise, the configuration is R.
When the fourth priority substituent is pointing away (it is attached by a dash bond) and the first, second, and third priority substituents are arranged counterclockwise, the configuration is S.
If the fourth priority substituent is attached by a wedge bond, then the clockwise or counterclockwise arrangement of the first, second, and third priority substituent is determined and that arrangement is reversed before assigning R or S.
If the fourth priority substituent is in the plane of the page, then it is switched with the substituent that points away. Then the clockwise or counterclockwise arrangement of the first, second, and third priority substituents is determined and that arrangement is reversed before assigning R or S.
(c)
Interpretation:
The configuration of each stereo center in the given molecule is to be designated as R or S.
Concept introduction:
When assigning priorities to substituents, the atom having the greater atomic number has higher priority. In case of comparison between isotopes, the one having the greater atomic mass gets higher priority.
When the fourth priority substituent is pointing away (it is attached by a dash bond) and the first, second, and third priority substituents are arranged clockwise, the configuration is R.
When the fourth priority substituent is pointing away (it is attached by a dash bond) and the first, second, and third priority substituents are arranged counterclockwise, the configuration is S.
If the fourth priority substituent is attached by a wedge bond, then the clockwise or counterclockwise arrangement of the first, second, and third priority substituents is determined and that arrangement is reversed before assigning R or S.
If the fourth priority substituent is in the plane of the page, then it is switched with the substituent that points away. Then the clockwise or counterclockwise arrangement of the first, second, and third priority substituents is determined and that arrangement is reversed before assigning R or S.

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Chapter C Solutions
Organic Chemistry: Principles and Mechanisms (Second Edition)
- Show your work and do something that is reasonable. It does not have to be 100% correct. Just show something that looks good or pretty good as acceptable answers. Something that looks reasonable or correct would be sufficient. If you can get many of them correct that would be great!arrow_forwardShow your work and do something that is reasonable. It does not have to be 100% correct. Just show something that looks good or pretty good as acceptable answers. Something that looks reasonable or correct would be sufficient. If you can get many of them correct that would be great!arrow_forwardTake a look at the following molecule, and then answer the questions in the table below it. (You can click the other tab to see the molecule without the colored regions.) with colored region plain 0= CH2-0-C-(CH2)16-CH3 =0 CH-O-C (CH2)7-CH=CH-(CH2)5-CH3 D CH3 | + OMPLO CH3-N-CH2-CH2-0-P-O-CH2 B CH3 A Try again * 000 Ar 8 0 ?arrow_forward
- Show your work and do something that is reasonable. It does not have to be 100% correct. Just show something that looks good or pretty good as acceptable answers.arrow_forwardShow your work and do something that is reasonable. It does not have to be 100% correct. Just show something that looks good or pretty good as acceptable answers.arrow_forward= 1 = 2 3 4 5 6 ✓ 7 8 ✓ 9 =10 Devise a synthesis to prepare the product from the given starting material. Complete the following reaction scheme. Part 1 of 3 -Br Draw the structure for compound A. Check Step 1 Step 2 A Click and drag to start drawing a structure. × ↓m + OH Save For Later S 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privaarrow_forward
- Predict the products of this organic reduction: 田 Check AP + + H2 Lindlar catalyst Click an drawing 2025 McGraw Hill LLC. All Rigarrow_forward70 Suppose the molecule below is in acidic aqueous solution. Is keto-enol tautomerization possible? • If a keto-enol tautomerization is possible, draw the mechanism for it. Be sure any extra reagents you add to the left-hand sid available in this solution. • If a keto-enol tautomerization is not possible, check the box under the drawing area. : ☐ Add/Remove step Click and drag to st drawing a structure Check Save For Late. 2025 McGraw Hill LLC. All Rights Reserved. Terms of Usearrow_forwardThe problem will not be graded for correctness, but you have to get a reasonable answer something that is either correct or very closer to the correct answer. The instructor professor wants us to do something that shows the answer but everything does not have to be correct. Ideally, yes, it has to be correct. Give it your best shot.arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning
