CHEM2211 Exam 2 2011

CHEM2211 Exam 2 2011 - NAME f irst last 810 C HEMISTRY 2211...

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NAME __________________________________ ___ last, CHEMISTRY 2211 EXAM 2 March 02, 2011 first Be sure to read each question carefully. Partial credit will be assigned where appropriate. Only answers written in the boxes or on the lines will be graded. I. ( 12 points) Name the following compounds using formal !UP AC nomenclature. H s CI F H ( IS) ;z.s) - 1- C.H LORO -).- F Ll.!OR.O c...... , C.LO H I?X/~"'G " . . IIIIBr """ 2. &, - () !IV) e TH'I L. , L.j, :;-- DI f'~OP)'L ( 15,3 R) - 1- (( I S, 2,1<.1 -2- fI'IET1+'ILC '1C L013 u nL)-3-« 15,25) 810# SCORE I. 2. 3. 4. 5. 6. 7. 8. TOTAL
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2 2. (10 points) In the accompanying box, draw (IS, 3R)-I-ethyl-3-(methylethyl)cyclohexane in its most stable chair conformation. Calculate the total strain energy of this conformation given the provided steric strain energies. Y 1,3-Diaxial strain ethyl 4.0 kJ/mol methylethyl 4.6 kJ/mol structure: total strain energy: 3. (16 points) Draw a detailed, stepwise mechanism using the curved arrow formalism to describe the following reaction. Identify each step
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CHEM2211 Exam 2 2011 - NAME f irst last 810 C HEMISTRY 2211...

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