Question

Identifying Stereochemical Relationships and Assigning Stereochemistry 1. Follow the instructions provided to indicate the relationship between the structure in the box and those shown underneath. HECH CHE CH,CH a) Write "a" in the blank below each molecule that represents the enantiomer of the one in the box. b) Write "b" in the blank below each molecule that represents a diastereomer of the one in the box. c) Write "e" in the blank below each molecule that is the same as the one in the box. H NH2 HC CH H CH3 La CH₂ CH3CH2O H NH2 H₂C. CH₂CH3 LECH CH.CH H NH2 C CH.CH H₃C d H. CH H NH2 HAN 2. Assign priorities to the four substituents on the stereogenic center and designate the configuration as Ror S using the Cahn-Ingold-Prelog convention H 1 " CH(CH3)2 CH OH

Answer 1

Identifying Stereochemical Relationships and Assigning Stereochemistry 1. Follow the instructions provided to indicate the relationship between the structure in the box and those shown underneath. HECH CH, CH,CHE a) Write "a" in the blank below each molecule that represents the enantiomer of the one in the box. b) Write "b" in the blank below each molecule that represents a diastereomer of the one in the box. c) Write "e" in the blank below each molecule that is the same as the one in the box. NH2 2S, 3R HC нсна La CH₂ CH3CH2O H NH2 H₂C. CH LC CH CH.CH HNH H NH2 CH,CHE H2C H₂C Η ΝΗ- bb 2S,3S 2S, 3R 2R,35 25,3R 2. Assign priorities to the four substituents on the stereogenic center and designate the configuration as Ror S using the Cahn-Ingold-Prelog convention S-Configuration H 1 "CH(CH3)2 © CH2OH

3. Provide IUPAC names for the following compounds in the box provided below each structure. Designate stereoisochemistry (ie, R/S) where that is appropriate (5 pts.). B-ethyl-2,10- (R)-2-bromo-1,1- dimethaddedecans citelorocyclopentane 4. Druw each of the following stereoisomers in its mest stable chair conformation (Spes.) cis-1-tert-butyl-2-Isopropylcyclohexane trans-1,3-dibromocyclohexane 5. Indicate whether each of the following molecules is chiral or achiral, by circling the appropriate word below each structure (4 p.) ples chiral achiral chiral achiral chiral achira chiral achiral 6. List three physical properties that will be identical for a pair of enatiomers, and then list three physical properties (characteristics) that will be different for a pair of enantiomers (6 pts.). Enatiomers will be identical in these respects Enantiomers will be different in these respects 1) melting point 1) specific rotation 2) boiling point 2) optical rotation 3) density