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- 6. How many asymmetric centers does the compound shown below have? CH;Organic ChemistryFor each pair of compounds, indicate whether the first structure is lower, higher, or about the same in energy as the second structure. Be sure to explain. C angle (c) CH3 OH is OH in energy than/as H3C because: Po (d) CN CN NC- CN CO₂Et is in energy than/as CO₂Et CO₂Et EtO₂C because:Indicate the relationship between each pair. Choose from: configurational stereoisomers,conformers, constitutional isomers, or different formulas (Each term is used at least twice.)
- 5) What is the relationship between each of the following pairs of molecules? Are the underlined answers correct? Explain. Br and Br (Identical Not Isomers Enantiomers Diastereomers I dentical the pos.tion of methul and Bromine becaure are at I and 3, Axial position. (b) Not Isomers Identical Enantiomers Diastereomers Br Br Br and Br (c) CHO CHO H OH HO--H COOH Not Isomers HO-H HO--H ČOOH Enantiomers Diastereomers Identical and (d) Br Enantiomers Diastereomers Not Isomers and Identical BrWhich of the following Fischer structures comectly represents the wedge and dish structure shown below Br # -CI OC OA 00 A C B Br Br HIE Br # ‡ Br Br -Cl C Br F ‡ GI Br D(b) For each of the following pairs of structural formulas, indicate whether the two represent identical molecular species, constitutional isomers, enantiomers, or diastereomers. HOW HO HOlim Br Br H Br CH3 H Cl- H Br H. Cl CH3 CI H Cl H, H Cl OH Br Br
- Which of the following molecules are chiral? Hint: Do these Lewis structures accurately depict the three-dimensional geometry? (a) H3C (b) Н,С CI (c) H3C CH3 (d) CI Br (e) CI Br C=C=C C=C=C C=C=C CI H. CI H Br CI CI BrWhich of the following compound consider to be chiral? O II O III OI CONV Br OH Olla - OH 11 CH₂ FIC C M III CH₂ CH₂CH₂ FIC O IVExplore! Determine the absolute configuration of the following compounds and draw the structure (Fischer projection) of the other enantiomer. CN CH3 HO CH2NH2 Br "CH3 A В SH ОН H3C CH3 CH2OH C=CH ČH3 E HOOC
- 1) Mark the chiral centers in the following molecules, if any, with an asterisk (*). (b) (a) НО HO HO OH OH (c) (d) *H₂N- НО HC CH3 CH3 c-0 О None OHIdentify e absolute configurations of all chiral centers in the following compounds. H CH3 H CI HO CH3 H, Bì HWhich of the following molecules is chiral? H3 C H -I H CH3 H CH3 CH3 H H CH3 H CH3