Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Question
Chapter 3, Problem 3.27P
Interpretation Introduction
Interpretation:
Chiral centers in cholesterol has to be labeled and also the number of possible isomers has to be given.
Concept Introduction:
Chiral center:
A tetrahedral atom that is bonded to four different groups is called as chiral center. The most commonly known tetrahedral atom is carbon.
Meso compound:
It is an achiral compound having two or more chiral centers that also has chiral isomers.
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a) How many chiral centers exist in the following molecule structure A?
b) How many possible stereoisomers would exist for structure A (including structure A) based on the correct number of chiral centers
I need help identifying chiral centers for the molecule and the amount of stereoisomers. This is for organic chemistry.
Mark each chiral center in the following molecule with an asterisk. How many stereoisomers are possible for each molecule?
Chapter 3 Solutions
Organic Chemistry
Ch. 3.2 - Prob. 3.1PCh. 3.3 - Assign priorities to the groups in each set. (a)...Ch. 3.3 - Prob. 3.3PCh. 3.4 - Following are stereorepresentations for the four...Ch. 3.4 - Prob. 3.5PCh. 3.4 - Prob. 3.6PCh. 3.5 - How many stereoisomers exist for...Ch. 3.5 - How many stereoisomers exist for...Ch. 3.7 - Prob. 3.9PCh. 3.7 - Prob. 3.10P
Ch. 3.8 - If the side chain of the amino add is a methyl...Ch. 3.8 - Prob. BQCh. 3.8 - The amino acids cysteine and serine are shown....Ch. 3.8 - Prob. DQCh. 3.8 - As stated, proteins are stereochemically pure...Ch. 3.8 - As stated, proteins are stereochemically pure...Ch. 3 - Prob. 3.11PCh. 3 - One reason we can be sure that sp3-hybridized...Ch. 3 - Which compounds contain chiral centers? (a)...Ch. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Mark each chiral center in the following molecules...Ch. 3 - Prob. 3.19PCh. 3 - Assign priorities to the groups in each set. (a) H...Ch. 3 - Following are structural formulas for the...Ch. 3 - Following is a staggered conformation for one of...Ch. 3 - Prob. 3.23PCh. 3 - When oxaloacetic acid and acetyl-coenzyme A...Ch. 3 - Prob. 3.25PCh. 3 - Mark each chiral center in the following molecules...Ch. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.30PCh. 3 - Which of the following are meso compounds?Ch. 3 - Prob. 3.32PCh. 3 - Prob. 3.33PCh. 3 - Which of the following compounds are chiral?...Ch. 3 - Prob. 3.35PCh. 3 - Prob. 3.36PCh. 3 - Prob. 3.37PCh. 3 - The chiral catalyst (R)-BINAP-Ru is used to...Ch. 3 - Prob. 3.39P
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- What is the relationship between these structures and why? these are diastereomers because all chiral centers are opposite these are diastereomers because some, but not all of the chiral centers are opposite these are enantiomers because all chiral centers are opposite these are enantiomers because some, but not all of the chiral centers are oppositearrow_forwardGlucose is the most abundant monosaccharide. In energy metabolism it is the most important source of energy for most organisms. Most carbohydrates have several chiral centers. How many chiral centers are present in the straight chain form of glucose? H- ОН НО H- ОН ОН CH,OHarrow_forwardHow many chiral center(s) are present in each molecule and how many stereoisomers are possible in each case? a) 2- Chloropentane b) 3- chloropentane c) 3- Chloro- 1- pentene draw the structures of each of the molecules on paper with showing chiral centers with a star/asterisk and mention the number of the stereoisomers for each molecule.arrow_forward
- 17. How many chiral carbon atoms does 1,3-dichloropentane have? a) Zero b) One c) Two d) Three be dextrorotatory. b) An optically active substance that rotates light counterclockwise is said to be levorotatory. c) An optically active substance that rotates light clockwise is said to be levorotatory. d) None of the above statements are correct. 18. How many chiral carbon atoms does chlorocyclohexane have? a) Zero b) One c) Two d) More than two 23. When four different atoms or 19. Stereoisomers that contain chiral carbon atoms and are superimposable on the own mirror image are called: a) diastereomers b) meso compounds c) racemic mixtures d) none of the above are correct functional groups are attached to a carbon atom, the carbon atom is called a(n): a) symmetric carbon atom b) asymmetric carbon atom c) quaternary carbon atom d) optically active carbon atom 24. How many chiral carbons are in the compound below? CH3 CH3 20. Stereoisomers that are not mirror images of each other are…arrow_forwardMark each chiral center in the following molecule with an asterisk. How many stereoisomers are possible for each molecule?arrow_forwardHigh serum cholesterol levels often correlate with increased risk of heart attacks. The structure of cholesterol is shown below. Identify the chiral centers. How many chiral centers are there in cholesterol?arrow_forward
- C2. Subject:- Chemistry please identify the chiral centers and determine the sterechemistry of a compound that contains a cycolhexanearrow_forwardIf the asymmetric carbons in a molecule have been designated (2R,3S,5R), what will the designations be in the molecule’s enantiomer? What will the designations be in one of its diastereomers?arrow_forwardHow to know if an atom is in sp3 when identifying chiral centers ?arrow_forward
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