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Q: How do you assign the chiral compounds for this chair conformation?
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- 8. 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)Consider the molecule shown. How many stereoisomers are possible? Draw each of the possible stereoisomers and identify pairs of enantiomers and pairs of diasteriomers.5. Which of the following statements is not true? A) A molecule that is superimposable on its mirror image is said to achiral. B) A molecule that is not superimposable on its mirror image is said to be chiral. C) A molecule that is superimposable on its mirror image is said to be chiral. D) A carbon atom bonded to four different groups is a stereogenic center.
- Draw the enantiomer and a diastereomer of the compound below. Br5. How many stereocenters does this compound have? How many stereoisomers are possible for this compound7) Identify the relationship between the following pairs of molecules [constitutional isomers, enantiomers, diastereomers, conformers, same molecule (non-meso), meso compound] a) c) C₂H5- H Br CI H CH3 Br H. CI Br H Br C₂H5 CH3 CI b) d) H. H Ph H F Me Br H H Et Br H F Et Me Ph
- 2. Fill in the squares with the correct configuration (R or S) for the following compounds and determine whether they are Enantiomers, Diastereomers, the Same Compound or Constitutional Isomers. Br H₂N NH₂ "Br A) Enantiomers B) Diastereomers C) Same Compour D) Constitutional Isomers11. Consider the following compounds: ÇO,H CHO ОНС H. ОНС CO,H H3C- -- H. HO- H3C H. O, H ČOH HO, CH3 B (a) Label the asymmetric carbons as R or S on each compound (A - C). (b) Which compounds, if any, are enantiomers? diastereomers? identical?Draw all diastereomers and enantiomers for this compound.
- 3. For each of the following pairs of structures identify the stereochemical relationship as identical, constitutional isomers, enantiomers or diastereomers. a) b) H. H₂C SH H H CH 3 *CI H₂C SH H H CH 3 H5. a) How many stereocenters does this compound have? CH¸Br b). How many stereoisomers are possible for this compound?Assign R and S, is this an enantiomer, diastereomer, constitutional isomer, or identical?