ProblemSet3 - CHEM 3570, FALL 2008 Problem Set 3 All of the...

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CHEM 3570, FALL 2008 Problem Set 3 All of the following problems are from midterms exams I gave in CHEM359. They will test your understanding of many of the concepts in Chapters 3 and 5, and Yes they are difficult . 1) a) Clearly draw both chair conformations for the following cyclohexane structures and indicate (by circling the structure) which one is most stable. F OH OH NH 2 A B C b) Draw the most stable conformation of the following two structures. It should be perfectly clear from your drawings which groups are equatorial and which ones are axial. H H Cl Cl 2) a) “One of these things (Fischer projections) is not like the others. One of these things doesn’t belong” Circle it . CO 2 H HO H CH 3 CO 2 H OH H CH 3 CO 2 H OH H H 3 C CO 2 H HO H CH 3 CO 2 H OH CH 3 H
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b) “One of these things is not like the others. One of these things doesn’t belong” Circle it . O O O O O c) Name the following optically active compound. Br
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ProblemSet3 - CHEM 3570, FALL 2008 Problem Set 3 All of the...

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