2. For the molecule shown below, draw the indicated stereoisomers in the boxes. a) Draw a meso stereoisomer b) Draw a chiral stereoisomer Br. Br c) Circle the chiral centers in the original molecule
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- Glucose is a simple sugar with five substituents bonded to a sixmembered ring. a.) Using a chair representation, draw the most stable arrangement of these substituents on the six-membered ring.b.) Convert this representation to one that uses a hexagon with wedges and dashed wedges.c.) Draw a constitutional isomer of glucose.d.) Draw a stereoisomer that has an axial OH group on one carbonConstruct a model in which a tetrahedral carbon atom has four different colored model atoms attached to it- red, green, orange and white representing 4 different atoms attached to the central atom. a) Does the atom have a plane of symmetry? why or why not? b) Now replace the green atom in your model with a second orange atom. Now two of the groups attached to the carbon atom are identical. Does the model now have a plane of symmetry? Describe it. c)A carbon atom has four different groups attached to the stereogenic center. Draw structural formulas for the following compound and mark stereogenic centers with as asterisk: 1-bromobutane, 2-bromobutane, 1,2-dibromobutane, 1,4-dibromobutane, 2,3-dibromobutane.Question: 2. For the molecule shown below, draw the indicated stereoisomers in the boxes. a) Draw a meso stereoisomer HO c) Circle the chiral centers in the original molecule a) 3. For each of the following individual molecules check all the descriptions that apply. a) b) OH c) HO d) OH Molecule 5 is achiral has an enantiomer has at least one chiral diastereomer contains at least one R chiral center has a meso diastereomer OH OH Br "Br OH ZOH Ph Ph ☆ H₂N NH₂ OH H₂N 4. For each of the pairs of molecules drawn below, place letters in the corner boxes corresponding to all accurate descriptions of the relationship between the two molecules. OH ado H₂N OH Ph H b) Br H Ph Br OH Molecule 6 is achiral has an enantiomer has at least one chiral diastereomer contains at least one R chiral center has a meso diastereomer all letters that apply all letters that apply b) Draw a chiral stereoisomer all letters that apply all letters that apply c) Ph Molecule 7 is achiral has an enantiomer has at least…
- a) Draw the ring-flip isomer of the molecule from question b) Lable out the strain . Show which of the two is favored in the equilibrium between them, and explain why, showing all possible forms of strain in each of the isomers. c) What is the stereochemical relationship between the two isomers? Enotiomer or diasteromer？ d) Draw another stereoisomer of the molecule and show all the strains it contains.3. Draw all possible stereoisomers for the following molecule. Once drawn, assign the configuration at each chiral center as R or S. Give the relationship between each stereoisomer that was drawn as enantiomers, diastereomers, or meso compound. You build a table to give the relationship between each stereoisomer. may SHShown below is Streptomycin, and Neomycin B. Circle and label as many functional groups in these molecules as you can. a. Label each chiral carbon in Streptomycin. How many total stereoisomers exist for Streptomycin? b. Label each chiral carbon in Neomycin B. How many total stereoisomers exist for Neomycin B?
- In this question, you will draw all the constitutional isomers of CH4Br₂. This compound has an IHD of 1, which means it will either have one ring or one double bond. For this question, do not consider stereoisomers.For this molecule: Br LOH HO Br a) Label each chiral center as R/S. b) Draw all other stereoisomers. c) Indicate which of these is the enantiomer of the first. d) Indicate which are diastereomers of the first. e) Indicate if any of the isomers are meso compounds.2. Draw all of the stereoisomers of dichlorocyclopentane. Use dashed lines and wedges (Hint: you should have 7 different/unique structures)
- Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O, N or 5, is a chiral compound, contains ONLY one functional group, and is a sulfide. Use the wedge/hash bond tools to indicate stereochemistry where it exists. Include H atoms at chiral centers only. If a group is achiral, do not use wedged or hashed bonds on it. Alkene or alkyne groups are considered to be functional groups. 98 4 - /IP ChemDoodleA chiral center is a(n) (select all possible answers) atom bearing groups such that interchanging of any two groups leads to a stereoisomer. non‑superimposable mirror image. tetrahedral atom bonded to 4 different substituents. plane of symmetry so that there are no stereoisomers. enantiomer. tetrahedral atom.F) Circle the letter corresponding to the relationship of each pair of structures: Identical (I), Conformers (C), Enantiomers (E) (enantiomers can have different conformations). FIRST... determine the absolute configuration of chiral centers. H | F OH C H OH E