310NSp08Exam2Key - Bocknack CH 310N Spring 2008 MIDTERM...

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Part I Answers & Scoring How to read this table : In the first three columns, you’ll find the question number, the maximum points possible, and the correct answer choice. The columns labeled “A” through “J” indicate the points awarded for the problem if this letter was the choice indicated on the answer sheet. Please check the Blackboard gradebook to see how you answered the Part I questions, and to check your raw score (out of 150 points possible) for Part I of the exam. Part I answer sheets will not be returned, and no regrades are possible on Part I of the exam!!! Question Max. Points Correct A B C D E F G H I J 1 6 C 0 0 6 0 0 0 0 0 0 0 2 6 B 3 6 0 0 0 0 0 0 0 0 3 6 C 0 0 6 2 0 0 0 0 0 0 4 6 D 0 0 0 6 0 0 0 0 0 0 5 6 B 0 6 0 0 0 0 0 0 0 0 6 6 B 2 6 0 0 2 0 0 0 0 0 7 6 C 2 0 6 0 0 0 0 0 0 0 8 6 E 0 2 0 0 6 2 0 0 0 0 9 6 D 0 0 3 6 0 2 0 0 0 0 10 6 A 6 0 0 0 0 0 0 0 0 0 11 6 B 0 6 0 0 0 0 0 0 0 0 12 6 C 0 0 6 0 0 0 0 0 0 0 13 6 B 0 6 0 0 0 0 0 0 0 0 14 6 D 3 0 0 6 0 0 0 0 0 0 15 6 F 0 4 4 0 2 6 2 2 0 0 16 6 B 0 6 3 0 0 0 0 0 0 0 17 6 A 6 0 0 0 0 0 0 0 0 0 18 6 C 0 2 6 0 0 3 1 1 0 0 19 6 C 0 0 6 0 0 0 0 0 0 0 20 6 E 0 0 0 0 6 0 0 0 0 0 21 6 B 3 6 2 0 4 3 0 0 0 0 22 6 A 6 0 0 0 0 0 0 0 0 0 23 6 D 0 0 0 6 0 0 3 0 0 0 24 6 B 0 6 0 0 0 0 0 0 0 0 25 6 C 0 0 6 0 0 0 0 0 0 0 Bocknack CH 310N – Spring 2008 MIDTERM EXAM #2 ANSWER KEY
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9 Part II – Write your answers to all questions on this page in the space provided. If you use a pen, only blue or black ink is acceptable!!! PLEASE READ EACH QUESTION VERY CAREFULLY !!! 26. (20 points) Complete the synthesis outlined below by filling in the empty boxes. It is not necessary to show stereochemistry in any of the structures that you draw. Make use of the scratch paper – only answers written in the boxes provided will be graded! Page Total 1) 2) 1) 2) Br Mg THF (2 eq) CH 3 O H CH 3 CH 3 OH, H 2 SO 4 (cat.) MgBr CO 2 H 3 O OH O OCH 3 O CH 3 MgX 3 Li or H 3 O
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10 Part II continues on Page 10… Part II – Write your answers to all questions on this page in the space provided. If you use a pen, only blue or black ink is acceptable!!! PLEASE READ EACH QUESTION VERY CAREFULLY !!! 27. (20 points) Complete the synthesis outlined below by filling in the empty boxes. It is not necessary to show stereochemistry in any of the structures that you draw. Make use of the scratch paper – only answers written in the boxes provided will be graded!
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310NSp08Exam2Key - Bocknack CH 310N Spring 2008 MIDTERM...

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