Circle all of the stereocenters in the molecules below. If there are none, write "None." a. Adrenaline na ОН b. Aspirin c. Limonene LOH ge OH d. Testosterone 또 H OH H OH
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- 1. Draw the mirror image of the molecule shown in the figure above 2. Change the configuration of carbon #1 by exchanging the position of bromine and hydrogen atom then write the mirror image of the molecule 3. Identify the configuration of carbon #1 and #2 in all of the stereoisomers. 4. Label the stereoisomers (Example: A, B, C, D, E, F ....) and identify the relationship of each pair of stereoisomers.Shown 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?Consider the pair of compounds shown below then select the word or phrase that best describes the relationship between them... Et Et Me Et Et Me and Me H. H Me H They are identical. None of these are accurate. They are diastereoisomers. They are constitutional isomers. They are enantiomers.
- Two nonsuperposable molecules are shown in the windows below: ball & stick + labels stereoisomer(s) e. Are the two molecules enantiomers? yes ball & stick a. How many chiral carbons are there in the molecule on the left? chiral carbon(s) b. What is the total number of stereoisomers in the group that includes the molecule on the left? no [References] stereoisomer(s) c. How many chiral carbons are there in the molecule on the right? chiral carbon(s) d. What is the total number of stereoisomers in the group that includes the molecule on the right? + labels Previous Next> Save and EConsider molecules with more than one chiral center. Consider 2,3-dyhdroxybutanoic acid. a. How many chiral centers does it have? b. Which ones? c. Reproduce the structure and encircle the four groups, which are linked to each chiral carbon.molecule? A) 3 B) 4 C) 5 D) 6 Place a circle around each of the 5 stereocenters for the structure from the previous question.
- Circle and label all functional groups in neurolenin D. Label any alcohols as primary, secondary, or tertiary. (See picture attached)5. Circle all of the stereocenters in the molecule below. ОНC. Exercises 1. Which molecule representation best shows the bond interactions? a. Wedge and dash b. Sawhorse c. Newman d. Fischer Which molecule representation best combines the 3D molecule and the bond interactions? a. Wedge and dash b. Sawhorse c. Newman d. Fischer 3. Which molecule representation best showws the 3D model? a. Wedge and dash b. Sawhorse c. Newman d. Fischer 4. Staggered and eclipsed conformations are best shown using which projection? a. Wedge and dash b. Sawhorse c. Newman d. Fischer 5. Which is a more stable conformation? a. Eclipsed ethane b. Staggered ethane
- Consider 2,3-dihydroxybutanoic acid (image below): a. Copy the structure and mark the first stereocenter with an asterisk. Encircle the four groups attached to this stereocenter.b. Copy the structure and mark the second stereocenter (if any) with an asterisk. Encircle the four groups attached to this stereocenter.3. Compare the compound at right to pinitol. is it a A conformer H- H. CH,OH ® structural isomer C geometric isomer H OCH, D. none of the above of pinitol? For each alternative, explain why you made the choice that you made here. VWhy or why not? D.• Question 5: Label each stereogenic center as R or S. CH₂ a. CH₂CH₂ b. CH H 1 NH₂ H CH3 CH₂CH₂ T C. D CI CH3 d. Br C ICH₂ H e. f. H* HO C HOOC CH₂ HO CH(CH3)2 -C₂ C CH3 SH NH₂ H CH3 g. h. .CI CI