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- 1. Determine the R/S configuration of all stereocenters in the following molecules: CH3 F а 'ОН H IF S IF H .... ОН ОН F I ОН H ОН F CI CH3Fill in the blanks: (a) to (i): Determine whether each stereocenter marked by letters in red is R or S: H,N CI F CI SH a b SH Br Br CI 1(a). 2(b). 3(c). 4(d). 5(е). 6(f). 7(g). 8(h). 9(1).Predict the splitting pattern for each kind of hydrogen in isopropyl propanoate, CH3CH2CO2CH(CH3)2.
- 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 Br3. Assign R or S configuration to the chirality centers of the following molecules; Cl CH3 CH3 а) b) HO C СООН СООН H;C H CH,CH3 H Br ОН CH,CH3 VIl. H ОН e) f) d) Cl H H OCH3 Br H. Br ...|| h) СООН HOCH, H3C CH3a) Select the perspective formula which correctly represents the following Newman projection: the OH CIH O ON O CL HO Front Atom NO₂ O,N CI NH₂ H NH, NH₂ H O HO. O O₂N O₂N CI HQ Back Atom CI H H "NH₂ b) For the two atoms (front and back) involved in the bond that the Newman projection is looking down, determine the absolute configuration of these two chiral centres. H
- Which rxn/s is/are unfavorable? Briefly explain why.From the following molecules, select all that apply: CI Br A B C D CI Br CI CI CI Br CI Br .. Br CI Plius.. Br For a compound with molecular formula C2H2Br2Cl2, (1)a stereosiomer that is optically inactive because it does not have an asymmetric center. (2) a stereosiomer that is optically inactive because it is a meso compound. (3) a stereosiomer that is optically active.Explore! 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. Determine the R/S configuration of all stereocenters in the following molecules: F CH3 OH F. CI H- -H- F- OH CH3 "HO, Он2. For the following molecule, an anti-anxiety molecule marketed for organic chemistry students, circle all stereocenters and determine R or S configuration for all that is possible to do SO. CI CI Excess NaOH then HCI recrystallized OH OH OHI CI CI NOT THIS Actual product (your prediction)2) Cirçle the icns with the 4s Crbitals emph? 3)