Translate the wedge-and-hashed structure to its Fischer projection. OH OH H. OH OH Select the Fischer projection that matches the structure. CHO CHO Но H- HO- H- OH но- -H- OH ČH2OH ČH,OH ČH2OH CHO CHO но H- H- OH Но но- OH HO- CH2OH CH2OH
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Q: Identify each of the following pairs of Fischer projections as enantiomers or identical compounds.…
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Q: Locate the stereogenic centers in each Newman projection and label each center as R or S.
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Q: OH C. H. CH3 H O (R)-Enantiomer O (S)-Enantiomer Alkyl halide O Achiral compound
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Q: ch3ch2(ch3)ch2ch(c=o)ch3 pka value
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Q: What is true about this chiral carbon shown in a Fischer projection? H;C CH3 CH3 CH3 CH3 H3C CH3
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Q: Which structure is a meso compound? В. CH3 A. C. D. CH3 CH3 CH 3 H--C1 H--C1 H--C1 H--C1 Cl--CH3…
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- 1. Below is the Fischer projection of a molecule. Is this the (R) or (S) enantiomer? 2. If you swap the positions of the H and the Cl, does this represent the same enantiomer or the opposite one? 3. Having swapped the positions of the H and CI, if you then swap the Cl and methyl group, what happens to the stereochemistry of the chiral center? CH3 H- CI CH,CH3a 3. Label each pair of the of molecules as enantiomers, diastereomers, or identical. CI CI H3C Br c H₂C OH H CH3 "H CH₂CH3 НО. H3C H3CH₂C CH3 H Br CH₂ H d HN H -CH3 NH₂ CH3 HN H- NH₂ -H CH3 CH3Classify each compound as identical to A or its enantiomer. CHO CHO H OH CHO a. CH,CH-C--OH CumCH,CH3 H OH b. d. HO C. ČH,CH3 н он CH;CH CHO CHO A
- .Draw the Fischer Projection of the following sugars. HỌ H HỌ H HO H НО. I .H НО НО Н НО Н ОНTranslate the Fischer projection to a wedge-and-hashed bond structure in a zig-zag chain. Be sure each stereocenter clearly shows one wedged bond, one hashed bond and two in-plane bonds. Select Draw Rings More Erase H |||| с Q2 Q H HO HO HO -OH -H -H -H CH₂OH H OОН 2. the Fischer projection that corresponds to the monosaccharide shown in the box. О н HO OH но- OH НО 0 OH OH OH H-OH -ОН 3. the Haworth projection that corresponds to the structure shown in the box. OCH, НО OH athul algasida О Н H-OH H-OH но-н но- HO -O OCH, OH O H H-OH НО-Н H-OH H-OH OH ОН НО НО OOCH, HO H-OH но-н но-н OH H-OH OH НО OH OCH, OH OH О н H-OH H-OH H НО но-н ОН НО -oOCH, ОН он он
- 4. 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-CH3The starting material is shown as a Fischer projection. Unless otherwise stated, the possible products are also shown as Fischer projections. HC. KOCH, (S) H3C CI Which of these is the major product of this reaction? CH3 H3C H3C H3C H3C CH3 HC H,C H3C- O. CH3 H3C CH3 H3C R,S C D A,Which Fischer projection corresponds to D-glucose? CHO CHO H- -OH но- -H HO H. H- H- -ОН Но H- -ОН но- ČH2OH ČH2OH CH2OH CHO но Но Но H- HO- H- HO- H- -ОН H- OH ČH2OH ČH2OH
- This is one enantiomer of the molecule. OH H CCH2-CH2-CH3 CH3 Draw the structure of the other enantiomer using wedges and dashes. Click and drag to start drawing a structure.ITEM #5 (Everyone should look at this question). Consider the two Fischer projections shown at right. They CH CH are NOT of the same molecule. H- -HO- HO In a short paragraph, explain why the molecules shown are NOT the same. OH но- H. HO. но In your explanation, describe how the groups of a Fischer projection are positioned in the ACTUAL molecule (Are the molecules flat in real life, or three-dimensional in real life? If three-dimensional, where exactly are the Hs and OHs positioned when one interprets these projections?) H- HO но H- CH,OH ČH;OH Also in your explanation, describe why the second molecule is not simply the first molecule flipped over (like a pancake).5. Consider the following pairs of structures. Identify the relationship between them (enantiomers, diastereomers, or identical compounds. он HO o CH,OH H,C H но CH,OH сон H HO. HO CH, HO,C CH COH HO,C, CO,H CO,H н онн он н онн он HOH,C сно OHC CH,OH Br CH,CH, H,CH,C CI CH OH