E test Module 3 Organic chemistry 1(Chem-40010) University of California (San diego), Exams of Organic Chemistry

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Which Newman projection corresponds to the compound below: HC Cl OA @B oc A CH3 CH; = ™ Sa B Cc D CH; H H H3C H 3c H = -H3C H H cl OC CH; 4H cl CH3 CH3 H be} CamScanner Draw eclipsed least stable conformation using Newman projection for the compound below: | H3C_, H,C OA OB Oc @D cHf! H3C cl H3C HC Cl cH cl CHEHs be} CamScanner 1. Please first draw a Newman projection representing correct staggered conformation (projection through the green bond). 2. Then identify the eclipsed least stable conformation for the following compound: Hint: i-Pr group is larger than Me group. <= <>) A B CH; CH; HC. H HC H H H H H HC CH; H3C” CH; H H Hc H H3C H H HC CHs H H3c~ CH; —-H3C CH; H3C. H3C H3C H3C. H3C D H H3C. H H CH H3C “CH; CH; H3C H H H H3C ‘CH; a ees Se ee re For the compound below please choose the correct set of chair and flipped chair conformations: @A OB O£ on) For the compound below please choose the correct set of chair and flipped chair conformations: % 1 For the compound below please identify the position of equilibrium (which chair conformation is more stable = major conformation): On A De7~ real les (major) (major) D sid 9, . (equal) i OA i | OB oc ey @o | | For the compound below please identify the position of equilibrium (which chair conformation is more stable = major conformation): | J OH A Assy ca ee <= HO (major) OH HO (equal) ou Cc ALf> cannot flip i HO i On| D App ies HO (major) oO 0 0 0 ® © For the compound below please choose the correct set of chair and flipped chair conformations: Cl Cl OA a Oo © Oo @ fe) fe) Question 13 Please name the compound below: OH A 2-isopropyl-6-methylcyclohexan-1-ol B 4-methyl-2-propylcyclohexan-1-ol c 2-isopropyl-5-methylcyclohexan:1-ol D 2-isopropyl-3-methylcyclohexan-1-ol OA OB @c Propose a >. Question 14 chemical structure for the name below: 2-chloro-1-isopropyl-4-methylcyclohexane A B Cc | = | OB (oc « Previous D FF Oe YG