3. Assign absolute configuration (Rors) to each chirality center. a. H Nitz C. он b. 0 H-C. C H 7 C. ་-4 917-417 refs H 1つ ८ ડુ d. Но f. -2- 01 Ho -OH 2HN
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- Mark all chiral carbons with a star in the following molecules._10. Which of the following chiral compounds has a S configuration? CH3 CH3 COOH соон Br HO А. В. НО CH2CH3 NH2 CI С. CH3 D.7. Which of the following drawings represents the enantiomer of compound X? CH, H,C-C-CH, ОН CH, CH, OH OH OH CH, H,C-C-CH, H,C-C-CH, H,C HO, ÓH OH A. В. С. 8. Which of the compounds below is (are) chiral? Br А. А В. В С. С Br Br Br D. D E. A and B F. B and D Br Br Br А. В. D.
- 4. For each of the following molecules, label each stereocenter as R or S. Label the molecules appropriately as chiral or meso. a. b. methionine NH₂ H d. но. OH c. D = 2H, T = ³H, isotopes of hydrogen. f.T. OH OH CI Y ОНH ÇI CH3-C-COOH он CH3-C-CH2Br 1. ČI a b 81. Consider the structures above. Which of these two contains a stereocenter? Draw thestructure on your answer sheet and mark the stereocenter with an asterisk. 82. Which of these two is a chiral molecule? Explain your answer. 83. Which of these two can exist as a pair of enantiomers? 84. Draw the pair of enantiomers using three-dimensional representation.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.
- Q4: a: Assign the absolute configuration of all chiral centers in molecules B and C by writing R or S directly adjacent to the chiral carbon. COOH COOH COOH ÇOOH ÇOOH H- HO- но H- H. HO- но H. но HO. H- OH но -H- но H. HO- H. COOH COOH COOH COOH COOH A C b: List any pairs of enantiomers: c: List any pairs of identical molecules: d: List any pairs of diastereomers: e: List all meso compounds: f: List all dextrorotatory compounds: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:Assign the absolute configuration of all chiral centres in the compound in the image?
- Part A. For each pair of isomers A and B, choose the one molecule that is chiral.Chrome File Edit View History Bookmarks Profiles Tab Window Help OO stereoisomershw.chem420.f16 X + ← → C G Search Google or type a URL stereoisomershw.chem420.f16.s20.s23 TE 26 1 • Quedla od 22,293 . MAR 8 H 010 C 2. Assign the R or S configuration to each chiral center in the molecules below. CH₂OH H₂C 1 / 1 W H =CH₂ CH3 CH(CH3)2 125% 12 + H3C CH3 Br A .CH,NH, H₂ W m P H 34% ¹ CH₂CH₂CH3 CH3 O Wed 5:01 PM CHBrCH₂CI H₂N CH₂Cl 3 4 (numbers indicate the IUPAC numbering) =S + Q III ⠀ :Match the following molecules with their correct chiral configuration.