Specify the configurations (R or S) of chiral centers a and b in the chem3D structure below. H3C CH3 CH3 ball & stick + labels Carbon a: Carbon b:
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- Specify the configurations (R or S) of chiral centers a and b in the chem3D structure below. OH CH2NH2 a b CN ball & stick v labels Carbon a: Carbon b:4. Identify the chiral centers in the following molecule and label each as R or S. но H.4. Assign R and S nomenclature to the chiral carbon atoms CI H. OCH3 а. с. b. HOH2C" `COOH CI
- 4. Identify the chiral centers in the following molecule and label each as R or S. НоConsider 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._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.
- Specify the configurations (R or S) of chiral centers a and b in the chem3D structure below. Carbon a: Carbon b: a OH CH3 CH₂CH3 ball & stick labelsDraw all Steroisomers of the compound and assign absolute Configuration of ench HO CH27:42 y C © * 4GE 73% 3. Label each of the following chiral centers as R or S. a. b. c. CH3 Br H- -CH2CH3 d. е. f. CH3 g. h. i. NH2 Br HO. H3C -HO- H j. k. I. NH2 H
- Following molecule is ----. CI H.C. CI H achiral chiral7. 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.CH3 CH3 CH3 CH3 CH3 H Br H Br H Br- H H. H. H 'H. H3C CH3 ČH3 Br 2-bromobutane a b The wedge-dash representation of 2-bromobutane is shown. What is the orientation of the chiral center(s)? Write the orientation as in the following examples, (2S) or (2R,3S), not 2s or 2R,3S. Be sure to include the parentheses and the number, and comma as necessary. Which of the Newman structures is equivalent to the wedge-dash structure? Note that the equivalent Newman structure will not necessarily have the same conformation as the wedge-dash structure.