QUIZ_2_VerB

QUIZ_2_VerB - Question 1(5 points Draw a chair conformation...

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Name: ____________________ T.A.:____________________ Student #: _________________ Section (see below): ___________ QUIZ 2 CEM 251 – Fall 2008 (Dr. Tepe) - Version B - Question: 1 ______ 2 ______ 3 ______ 4 ______ 5 ______ Total points: NAME SEC.# Day-Time ROOM Brandon Dutcher 13 Th – 4:10 – 5:00 PM 085 Thu Nguyen 14 Th – 4:10 – 5:00 PM 281 Oluwatoyin Olumolade 15 Tu – 11:30 – 12:20 PM 183 Brandon Dutcher 16 Tu – 4:10 – 5:00 PM 183 Thu Nguyen 17 Th – 8:00 – 8:50 AM 281 Monica Norberg 18 Th – 10:20 – 11:10 AM 281 Monica Norberg 19 Th – 11:30 – 12:20 PM 281 Monica Norberg 20 Th – 4:10 – 5:00 PM 110 Oluwatoyin Olumolade 21 Tu – 4:10 – 5:00 PM 110 Oluwatoyin Olumolade 22 Tu – 3:00 – 3:50 PM 283 Thu Nguyen 23 Th – 3:00 – 3:50 PM 283 Brandon Dutcher 24 Tu – 10:20 – 11:10 AM 110 Carmin Burrell 38 Th – 11:30 – 12:20 PM 109
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To receive full credit draw very clearly and exact. Only the structures written within the designated boxes will be graded for credit!
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Unformatted text preview: Question 1 (5 points): Draw a chair conformation of 1-chloro-cyclohexane showing all hydrogens atoms and identify each position as axial or equatorial. (Similar to question 4.12) Question 2 (5 points): Draw the most stable chair conformation of: cis-1-bromo-4-methyl cyclohexane. (From question 4.18) Question 3 (5 points): (From question 5.6) What product would you expect from the reaction of cyclohexene with HCl ? (5 points) H-Cl Product: Question 4 (5 points): (From mix of 5.6/5.7) Draw the exact arrow-pushing mechanism of the reaction of cyclohexene with HBr (see below) and clearly identifying what the electrophile is and what the nucleophile is in each step of the mechanism. H-Cl Question 5 (5 points): Finish the sketch below of an energy diagram for a one-step reaction that is exergonic (3 points). (from worked example 5.3 page 161) Reaction progress Energy reactants Is the Δ G positive or negative (1 point) ? Is the K eq greater or smaller than 1 (1 point) ? Δ G = K eq =...
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  • Conformational isomerism, Cyclohexane conformation, Nguyen Monica Norberg Monica Norberg Monica Norberg Oluwatoyin Olumolade Oluwatoyin Olumolade, Norberg Monica Norberg

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