PracticeExam1 - Chemistry 343 First Practice Exam 1 Give...

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Br Cl H CH 3 H Br CH 2 CH 3 CH 3 CH 3 CH 3 O O OH Digitalin O OH O CH 3 O OCH 3 H OH O CH 2 OH HO OH H OH H Chemistry 343 First Practice Exam 1 . Give the correct IUPAC name for each of the following compounds. Don’t forget stereochemistry. 2 . Digitalin, which is a heart stimulant, has the following structure. It has 36 carbons. ( a ) Indicate R or S at the arrows. ( b ) How many stereocenters in digitalin? _____________ ( c ) What is its index of hydrogen deficiency? __________ ( d ) What is its molecular formula? ______________ ( e ) List the functional groups that you recognize (those that were discussed in class). Ignore the two acetal groups (the ones with two oxygens on a carbon).
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2. ( a ) Draw the most stable staggered conformation of 2-methylbutane as a Newman projection about the C 2 - C 3 bond. ( b ) Now draw the least stable conformation of 2-methylbutane as a Newman projection. ( c ) Use the table provided to determine the energy difference between the two conformations that you
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This note was uploaded on 03/27/2008 for the course CHEM 343 taught by Professor Whitlock during the Fall '07 term at University of Wisconsin.

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PracticeExam1 - Chemistry 343 First Practice Exam 1 Give...

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