Concept explainers
Using the Fischer projection of
Switching the positions of
Switching the positions of
Switching the positions of three groups.
Switching
Rotating the Fischer projection
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Organic Chemistry - Standalone book
- Consider CH3-CH(OH)-CH(OH)(Br). a.How many stereogeniccenters are in the molecule? b.How many stereoisomers are there for the compound? c.Draw the Fischer projection for each of the stereoisomer. Label each using I, II, etc. d.Which pairs are enantiomers? Which are diastereomers? e.Determine the absolute configuration of each chiral center in one pair of diastereomer.arrow_forward1. Locate/Label the chirality center of the given molecules. a. OH H2N C H CH3 CH3 SH b. OH HO CH2NHC(CH3)3 HOCH2arrow_forwardWrite the IUPAC names for each compound showing the R or S configuration of each chiral center.arrow_forward
- HO OH a) Provide the Fischer projection of the above molecule. b) provide the R-S configuration for each of the chiral centre(s) c) Draw the Fischer projection and the bond line structure of the above molecule's enantiomerarrow_forwardDraw a Fischer projection of (2R,3S)-3-bromo-2-butanolarrow_forward4. Determine if each Fischer projection is chiral or achiral. If chiral, identify it as the d or l stereoisomer and draw the mirror image. a. CH₂OH HO- ti CH3 H b. CH ₂ 0+H Н CH3 HO ₂-CH3arrow_forward
- What is the configuration at the chiral centers of the Fischer projection of the molecule shown? (The molecule is drawn with C1 at the top and C5 at the bottom.)arrow_forwardAssign R or S configuration to each chirality center in the following molecules. First assign the configuration of the chirality center closest to the top of the Fischer projection. Then give the configuration of the other chirality center. CH₂OH -OH CH3CH₂ # H- -OCH3 CO₂H 1st structure: Top chirality center 2nd structure: Top chirality center H3C- H3C- OH -OH -H Other chirality center: ✓. Other chirality center: Varrow_forward8. Assign each chiral carbon as R or S in compound-A. Draw the mirror image of compound-A and assign configuration to each chiral carbon. (note that the dotted line represents the mirror). H₂N S OH Compound A CH3 CH3 mirror CH3 CH 3 Mmok NHZarrow_forward
- Consider the below structure: ОН 1 H3CHN a. Draw 3-D structures and a Fischer projection for the 1R, 2S, and the 1S, 2S stereoisomers of the above structure. b. Draw all the conformers obtained by rotation about the C1-C2 bond and rank them in order of increasing stability.arrow_forwardDraw the Fischer Projection for the pair of enantiomers of lactic acid, CH3-CH(OH)-COOH (place COOH group at top)arrow_forward2. Answer the following: a) b) Identify the stereogenic center by placing an asterisk and determine the configuration of each. What's the relationship between the following pairs of Fischer Projection structures? Same, Enantiomers or Diastereomers? (Note: make sure to review the posted Fischer Projection Rules for this question) HO HO H H CH3 H H CH₂CH3 CH 3 CH3 -OH H HOCH 3 CH₂CH3 H- HO OH H CH3 H CH 3arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning