practiceexam3b

practiceexam3b - Explain why this is so, and draw the major...

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3. Predict the product and draw a mechanism for the reaction shown below. Clearly name each type of step involved in the reaction process. Br 2 h ν 4. Complete the equations shown below. You need not indicate stereochemistry, but you should show all major regioisomers formed. A) HBr, ROOR 1 16 pts
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B) O OH Br OH - C) ignore this one OH OH OHC CHO D) Br AIBN (cat) Bu 3 SnH 5. Rationalize the products of the following reaction. Clearly show the pathway by which the products are formed. (Draw all intermediates and a mechanism as appropriate. Use clear structures and curly arrows.) 2 12 pts
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O Br N H O MeOH O OMe N H O 6. The following reactions do not afford the major product that is given.
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Unformatted text preview: Explain why this is so, and draw the major product that is actually formed. A) Br-OC(CH 3 ) 3 OC(CH 3 ) 3 3 10 pts B) Br-OCH 3 4 7. Predict the mechanism of substitution in each reaction and show the products (you must show any associated stereochemistry). A)-OCH 3 products mechanism? DMSO Br H B) HOCH 2 CH 3 products mechanism? Cl 5 10 pts 8 pts 9. Given the two molecules below, predict which will undergo the indicated reaction more quickly. Show the expected product(s) and justify your answer using appropriate structures. 6 12 pts Br OH-Br OH-A B 7...
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This note was uploaded on 07/02/2011 for the course CHEM S341 taught by Professor Staff during the Spring '11 term at Indiana.

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practiceexam3b - Explain why this is so, and draw the major...

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