Exam 2 key - Circle the section in which you are enrolled...

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1 Please write the first three letters of your last name in the above boxes Organic Chemistry CH 310M/318M Dr. Sessler EXAM 2 Thursday, October 30, 2008 Name:__________ KEY ______________ UT EID:_____________________________ Signature:____________________________ NOTE: The exam must be taken using blue or black ink to be eligible for a regrade in the case you have concerns regarding grading errors.
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2 1. Draw structural formulas for each of the following alkenes. Use the boxes provided for your final answer. (18 pts) 1,3,5-Cyclohexatriene 1-Chlorocyclopentene 1,3-Cyclobutadiene cis -Cyclooctene 1-isopropyl-4-methylcyclo- hexa-1,3-diene (E)-2,6-dimethyl- octa-2,6-diene Cl
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3 2. Nomenclature. (24 points) a. Name each of the following compounds according to acceptable IUPAC nomenclature guidelines. Be sure to use the E/Z notation where appropriate. ( E )-4-propylhept-2-en-6-yne or ( E )-4-propyl-2-hepten-6-yne 6-methylhepta-1,4-diyne or 6-methyl-1,4-heptadiyne ( Z )-2,3,6-trimethyloct-4-ene or ( Z )-2,3,6-trimethyl-4-octene ( E )-3-bromo-6-chlorooct-4-yne or ( E )-3-bromo-6-chloro-4octyne As stated on pages 257-8 of your text: When a carbon-carbon double bond and a carbon-carbon triple bond are both present in the same molecule, the IUPAC rules specify that the location of the double bond takes precedence in numbering the compound. Br Cl b. Draw the correct structural formula for the following alkynes. 2,2,5,5-tetramethyl-3-hexyne cyclohexylacetylene
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4 3. Rank the following series of compounds in order of acid strength from weakest (1) to strongest (4). (12 points) a.
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Exam 2 key - Circle the section in which you are enrolled...

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