Concept explainers
(a)
Interpretation:
Three-dimensional representation of a given Fischer projection should be drawn.
Concept Introduction:
Fischer Projection is a method of drawing 3-D structures of organic molecules using cross formula. In this method, all non-terminal bonds are depicted as horizontal or vertical lines.
In the Fischer projection, horizontal bonds represent groups coming forward (drawn as wedges) and vertical bonds represent groups going backward (drawn as dashed wedges).
(b)
Interpretation:
Three-dimensional representation of a given Fischer projection should be drawn.
Concept Introduction:
Fischer Projection is a method of drawing 3-D structures of organic molecules using cross formula. In this method, all non-terminal bonds are depicted as horizontal or vertical lines.
In the Fischer projection, horizontal bonds represent groups coming forward (drawn as wedges) and vertical bonds represent groups going backward (drawn as dashed wedges).
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General, Organic, & Biological Chemistry
- Draw a Fischer projection for each compound. Remember that the cross represents an asymmetric carbon atom, and the carbon chain should be along the vertical, with the IUPAC numbering from top to bottom.(R)-2-bromobutan-1-olarrow_forwardConvert the Fischer projection to a perspective formula. H-COO-CH2CH3-CH3arrow_forwardConsider the two Fischer projections shown . They are NOT of the same molecule. Explain why the molecules shown are NOT the same? 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? Describe why the second molecule is not simply the first molecule flipped over (like a pancake).arrow_forward
- Draw a Fischer projection for each compound. Remember that the cross represents an asymmetric carbon atom, and the carbon chain should be along the vertical, with the IUPAC numbering from top to bottom.(R)-glyceraldehyde,arrow_forwardThe Fischer projection for linear D-glucose is shown. Fill in the missing H's and OH's for the wedge and dash projections. Then convert to a Haworth projection for both a-D-glucose and B-D-glucose in linear form. Next, convert to the cyclic form and finally to a chair conformation for both pyranoses. Haworth projection pyranose (chair) CHO H- HO- H -OH -H -OH H-OH CH₂OH = 4 3 4 5 6 3 a-D-glucose rotate 90° clockwise OH H ba 1 6 4 5 B-D-glucose 5 4 3 3 -OH O 1 Harrow_forwardDraw Fischer projection and determine the configurationarrow_forward
- Draw Fischer projection and determine the configurationarrow_forwardWhich of the following statements is/are correct? Br Br Br Br CI 'P' 'R' 'S' .D. A. P and Q are non-superimposable mirror images of each other. B. R and S are non-superimposable images of each other. C. Q and R are same compound. D. Q and S are enantiomers. E. statements A and B are correct.arrow_forwardThe structure below is aarrow_forward
- How stereoisomers differ in configuration ?arrow_forwardH3C CH3 chiral achiral H H₂C CH3 H chiral achiral CI CH3 CH3 chiral achiral Br Br chiral achiralarrow_forwardWhich 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 ČH2OHarrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningOrganic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning