a. Assign the correct stereochemical descriptors to every stereocenter in the molecule below SH HN b....
EXAM 0 would be: 1. An example of a reaction having an E,ct a. Br +Br-Br Br-Br Br. b. F CH4 H-FCH3 c. CH3 +CH, CH d. Br. +H-Br >CH4 CH,CH2 H-BrBr CH3-CH e. CH, +CH, 2. Which of the following is true of any (S)-enantiomer? a. It rotates plane-polarized light to the right. It rotates plane-polarized 1ight to the left. C. It is a racemic form. d. It is the mirror image of the corresponding (R)-enantiomer. e. It has...
Name 03.101 example of a reaction having an Eact = 0 would Br• + Br-Br - > Br-Br + Br. F. + CH - > H-F + CH3. . CH. + CH, CH2 - CH + CH3 CH2 • .. Br + H-Br - > H-Br + Br. -. CH. + CH3 - > CH3-CH3 Which of the following is true of any (S)-enantiomer? 4. It rotates plane-polarized light to the right. b. It rotates plane-polarized light to the left....
Indicate the stereochemical configuration for the tetrahedral centers shown below. OR OS not a configuration center Br R OS not a configuration center ООО Select the proper IUPAC name for the following compound, including the (R) or (S) designation where appropriate. Н. - (2R,3S)-2-chloro-3-methylpentane (29,3R)-2-chloro-3-methylpentane (2R 3R)-2-chloro-3-methylpentane O (2S,3S)-2-chloro-3-methylpentane Classify the following pair of compounds as the same compound, enantiomers, diastereomers, constitutional isomers, or not isomeric. Also, select the correct IUPAC name, including the correct (R) or (S) designation, for...
Choose the correct absolute configuration(s) for each asymmetric center (i.e. stereocenter) in the molecule shown. LCH Y HON H (R) (2R 3R) O(S) (2S,3S)
1. a. (4 points) Draw the dash-wedge structure of (2R,3S)-2,3-dichloropentane. b. (4 points) Draw the Fischer projection of enantiomer of the compound drawn in part a. Name the enantiomers. c. (6 points) Draw the Newman projections (looking down the C2-C3 bonds) of the diastereomers of the compound drawn in part b. Name the diastereomers.
Which is the correct name for the compound shown below? H. O (2R,35)-2-Bromo-3-chlorobutane (25,3R)-2-Bromo-3-chlorobutane (2R, 3R)-2-Bromo-3-chlorobutane (2S,3S)-2-Bromo-3-chlorobutane Which compound is achiral? O meso-2,5-Difluorohexane O trans-1,2-Dimethylcyclohexane O (S)-3-lodohexane (2R, 3R)-2,3-Dibromoheptane 1
9 Draw the molecule shown below in the Fischer proiection and give the chirality of cach chiral center in the molecule. Draw the other 3 stereoisomers of the molecule in Fisher projections also- showing the chirality of cach chiral center. (6 points) CA CaH d) Draw the structure of (3R)-3-ethyl-2,3-dimethylheptane paying attention that you have shown. the correct stereochemistry. (3 points): 9 Draw the molecule shown below in the Fischer proiection and give the chirality of cach chiral center in...
Solve 12-14 12. Consider the molecule shown below. OH OH f. How many stereoisomers are possible? g. Draw each of these stereoisomers. h. Identify pairs of enantiomers and pairs of diastereomers. i. Build a model of the stereoisomer that has both OH groups pointing out. Also, build a model of the mirror image of this molecule. j. Do your two molecules represent enantiomers? Are they chiral? Fischer Projections 13. Build a model of 1-bromo-1-chloroethane. a. Draw a3D representation of this...
1. a. (4 points) Draw the dash-wedge structure of (2R,3.5)-2,3-dichloropentane. b. (4 points) Draw the Fischer projection of enantionmer of the compound drawn in part a. Name the enantiomers c. (6 points) Draw the Newman projections (looking down the C2-C3 bonds) of the diastereomers of the compound drawn in part b. Name the diastercomers 2. (6 points) Draw the mechanisms of the propagation steps of the reaction shown, focusing on the formation of the major product(s). NBS
1. Construct a model of the 2,3-dibromopentane isomer and label the chiral centers as R or S. Then make a model of its mirror image and draw it below, again labeling the chiral centers as R or S. a. Convert both models to their most stable conformation and draw their Newman projections looking down the center bond. b. On one model interchange the H and Br on one of the chiral centers. How is this molecule related to the other...