Chiral or achiral chiral or achiral no chiral centers

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chiral or achiral chiral or achiral No. Chiral centers:______ No. Chiral centers:______ OH 2 4 5 1 * * * * * * * * * * * * 5
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17. What is the correct IUPAC name of the following molecules (10 pts): CH 2 CH 2 Cl H Cl HO CH 2 CH 3 CH 2 CH 2 CHF 2 (4S,5S)-5,7-dichloro-4-ethyl-1,1-difluoro-4-heptanol Br Cl Cl (E)-8-bromo-4-tert-butyl-1,1-dichloro-5-isopropyl-4-octene Ph trans-(1R,3R)-1-benzyl-3-ethylcyclohexane cis-(1R,3S)-3-bromocyclohexanol OH Br 18. Fill up the squares with the corresponding chirality ( R or S ) in the following compounds and determine the relationship between them. (10 pts) A) Enatiomers B) Diasteromers C) Same compound D) Constitutional Isomers Cl Cl R R R R S S 6
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19. On the big chair below, draw the most stable conformation of trans- 1-t-butyl-3-propyl cyclohexane (use the small chair as a guide to draw your two substituent bonds. DO NOT draw hydrogens on the big chair! ) (10 pts) t-butyl: eq propyl: ax 20. Which one of the following compounds is the enantiomer of compound X ? (5 pts) B C D A CH 3 H Br Cl H CH 2 CH 3 CH 2 CH 3 Cl H H Br CH 3 CH 2 CH 3 Br H H Cl CH 3 CH 3 H Br H Cl CH 2
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