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- 4. Identify the chiral centers in the following molecule and label each as R or S. но H.IX. Assign R, S configurations to each indicated chirality center in the molecules below. HO. HO 16. OH Ye H HO₂C H 14. HO CO₂H OH The configuration of carbon 14 is The configuration of carbon 16 is The configuration of carbon 18 is H CH,NH, H 15. H₂N CH3CH₂ 17. COOH ----CH3 H CH3 The configuration of carbon 15 is The configuration of carbon 17 is 18.4. Identify the chiral centers in the following molecule and label each as R or S. Но
- Consider the Newman projections, A-C. CHO Н. H CHO OH A CH₂OH OH но. н H ОН CH₂OH B н. НО CHO OH C .CH₂OH н i. Determine the structural relationship of A and B; B and C. ii. Without a change in conformation, assign the configuration to the chiral centers in B.3 Which of the following is a chiral C-atom? See attachment! Attachments O2₂N A. A B. B OC.C A OH OH D. A and B E. B and C F. A and C G. All are chiral carbons CI B CI C Which statement(s) is/are true? A. Diastereomers will always have the same biological properties. 0 B. Diastereomers are configurational isomers which are non-superimposable mirror images of each other. C. The rotation of plane-polarised light will always be exactly the same for all diastereomers of a given compound. D. Diastereomers have different physical and chemical properties.5. Assign R and S to each chiral center. Br H. CI NH2 H, OH H... OCH3 CH3 H. NC A A [ [ Choose ] [ Choose ] [ Choose ] C [ [ Choose ] D
- Which of the following molecule(s) is(are) chiral? A. B. C. N H₁ H✔ A B Ru Fe B H H A and C A and B B 7²+ -H H5 6 How many stereoisomers of the following molecule are possible in principle? Attachments HO H₂C A. 8 B. 128 C. 64 D. 32 E. 16 CH3 HO What is the relationship between the following two compounds? Attachments HO OH OH moja moja A. They are diastereomers B. They are enantiomers ⒸC. They are mesomers D. None of the above NH₂ OHWhich one of the molecules below has a chiral (optical) isomer? a. C. b. H-C a H3C-C-CH3 H₂C-CH3 с -CH3 d OH d.. H3C- F NH₂ -OH CI H3C-CH₂-COH H₂C-CH3
- 1. Label each of the following molecules as chiral or achiral. :b. c. d. а. Br Br g. Br Br Br Br i. k. m. n. O. p. OH OH 2b. Which of the above compounds are optically active?Specify the configurations (R or S) of chiral centers a and b in the chem3D structure below. H3C. CH3 b a ČH3 ball & stick v labels Carbon a: Carbon b:4. Draw the enantiomer of each structure that is chiral. Answer by drawing only the enantiomers, not the original structures. HO, O J... CI Cl IZ A Structures for Question 4. CI mi H₂N OH
