(a)
Interpretation:
Number of stereo centers in (+)-tartaric acid should be identified.
Concept Introduction :
Stereo centers are those carbon atoms which are attached to 4 different groups. They are also known as chiral centers.
(b)
Interpretation:
All possible stereo isomers of (+)-tartaric acid should be drawn by indicating the optical activity of the each structure while indicating pairs of them as enantiomers, diastereomers or meso compounds.
Concept Introduction :
Stereoisomers are the compounds which have the same molecular formula but differ only with the partial arrangement of the atoms in the molecule.
(c)
Interpretation:
Other stereoisomers of (+)-tartaric acid that can be used to resolve racemic 1-phenylethylamine should be identified.
Concept Introduction :
Stereoisomers are the compounds that have the same molecular formula but differ only with the partial arrangement of the atoms in the molecule.
(d)
Interpretation:
A possible advantage of using a different stereoisomer of (+)-tartaric acid to resolve racemic 1-phenylethylamine should be identified and the reason should be explained.
Concept Introduction :
Stereoisomers are the compounds that have the same molecular formula but differ only with the partial arrangement of the atoms in the molecule.
(e)
Interpretation:
Importance of the optical purity of the resolving compound should be identified and explained.
Concept Introduction :
Stereoisomers are the compounds which have the same molecular formula but differ only with the partial arrangement of the atoms in the molecule.
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Chapter 7 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
- Q 3 pleasearrow_forward4. For the following two structures compared in parts A and B, determine whether they are enantiomers OR diastereomers OR the same structure drawn differently (non-bonding electrons not included for clarity). a. O C-H но-скусна HO CH3 H OH H-C Harrow_forward8. Identify the stereochemical relationship between the structural pairs shown below as (A) identical structures that are not meso; (B) identical structures that ARE meso; (C) structures that are enantiomers; or (D) structures that are diastereomers. a) b) H3C c) CH3 Br H. CH3 Br Br CH3 H. CI Holl H Cill Cl- CH3 Br H. CI CH3 HO. H. H3C Cl H3C- H- H. CH3 Cl a) b) c) 9. Identify the stereochemical relationship between the structural pairs shown below as (A) identical structures that are not meso; (B) identical structures that ARE meso; (C) structures that are enantiomers; or (D) structures that are diastereomers. a) b) c) CH2CH3 NH2 HO CH3 H3C. CH3 Cl HO H;C CH2CH3 F. F H;C. CI H H,N -CH3 CH3 NH2 H3C Br H2N C1 H3C CH3 CH3 H;CH,C- Cl F H. H Br CH,CH3 CH3 a) b) c)arrow_forward
- Molnupiraviris a promising drug candidate that is discovered to treat patients with Covid-19. The drug is more advantageous than Remdesivir because it is administered orally. The structure of Molnupiraviris drawn below: *Figure in the screenshot* a. How many chirality centers exist on this drug? b. How many maximum numbers of stereoisomers with respect to chiral centers exist? c. Determine R/S configuration of each chiral centeronMolnupiravirby pointing to each chiral center with an arrow on the structure above d. Draw the enantiomer of Molnupiraviracross from it above e. MolnupiravirdestroysCorona virus by introducing error during viral RNA replication. If you were a physician, would you administer a pill that consists of a racemic mixture of Molnupiravirand its enantiomer to a covid positive patient? What would be your expectations? Give your reasons.arrow_forward6. What is the enantiomeric excess in a sample with a 1:1.2 mixture of R:S enantiomerarrow_forward3. The specific rotation of (S)-carvone is +61°. A chemist prepared a mixture of (R)-carvone and its enantiomer, and this mixture had an observed rotation of -50°. A. What is the specific optical rotation of pure (R)-carvone? B. Calculate the %ee of this mixture. C. What percentage of this mixture is (S)-carvone?arrow_forward
- 3) Your results should show that S-mandelic acid rotates light to the right and R-mandelic acid rotates light to the left. Explain the correlation between the R/S configuration and the direction to which light is rotated. 4) Interpret the % ee of your unknown sample. How much of your sample is racemic? How much of your sample is the S enantiomer? How much of your sample is the R enantiomer?arrow_forward1. Is the molecule shown below chiral or achiral? HO₂C OH 2. Is the molecule shown below chiral or achiral? CH₂OH H OH CO₂H 3. Which of the following terms best describes the pair of compounds shown: enantiomers, diastereomers, or the same compound. CH3 & D ....!!!!! H3C Holl 4. Label each chiral carbon in the compound below as R or S. JOH // CH3arrow_forward5. Solution A contains 9 g of pure (-)-fructose was diluted to 500 mL with water and placed in a polarimeter tube 20 cm long. The measured rotation was -3.31°. a. Calculate the specific rotation of the compound in the solution. b. If Solution A were mixed with 500 mL of a solution containing 2 g of racemic fructose (Solution B), what would be the optical purity (% enantiomeric excess) of the resulting fructose mixture?arrow_forward
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning