PracticeExam2A

PracticeExam2A - explain the stereospecificity. (A drawing...

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Practice Exam 2A 1) Predict the product(s) of the following reaction. Cleary show the pathway by which the product is formed. (Draw all intermediates and a mechanism as appropriate. Use clear structures.) 2) Fill in the boxes with the reagents or major products needed to complete the following reactions. (You do not need to indicate stereochemistry.) 1) O 3 2) DMS HI O Cl HO OH H 2 O H 2 SO 4 (cat) H 2 / Pt No rearrangement
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3) Indicate whether the following reactions are oxidations, reductions, or neither by circling the correct answer. 4) In the reactions shown, the starting materials are achiral. The structural formula of the product is given. a) Based on the structural formula of the product, how many stereoisomers are possible? Draw them. b) Experimentally not all of the stereoisomers are formed. Predict which stereoisomer will form and
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Unformatted text preview: explain the stereospecificity. (A drawing would be helpful.) 5) Complete the following reactions by providing the missing products, reagents or starting materials; as indicated by the boxes. Include stereochemistry where appropriate. COO-O SCoA O A) Oxidation B) Reduction C) Neither COO-COO-COO-COO-COO--OOC OH A) Oxidation B) Reduction C) Neither-OOC COO--OOC COO-A) Oxidation B) Reduction C) Neither CH 4 CO 2 A) Oxidation B) Reduction C) Neither A) Oxidation B) Reduction C) Neither O COO-OH 1) 2) 3) 4) 5) OH OH OsO 4 tBuOOH Br Br Br 2 1) B 2 H 6 2) H 2 O 2 , NaOH Peroxyacetic acid Cl 2 Ethanol O OH H + (cat) BONUS : Based on the chemistry of alkenes you have learned so far, draw a complete mechanism for the following reaction. HO HCl (cat) OH OH O O 1) O 3 2) DMS...
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PracticeExam2A - explain the stereospecificity. (A drawing...

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