1. (a) The two reactions shown below both produce a secondary alcohol. For both reactions provide a mechanism and predict the major diastereoisomer of the product formed, using the Felkin-Anh model. но. Ph Н Ph Ph H i)LIAIH ii) H₂O (b) Answer BOTH parts (i) and (ii) (i) Predict the major product of the reaction shown below. Include in your answer a mechanism, and account for any stereoselectivity you propose. m-CPBA i) PhMgBr ii) H₂O ? ? m-CPBA

1. (a) The two reactions shown below both produce a secondary alcohol. For both reactions provide a mechanism and predict the major diastereoisomer of the product formed, using the Felkin-Anh model. но. Ph Н Ph Ph H i)LIAIH ii) H₂O (b) Answer BOTH parts (i) and (ii) (i) Predict the major product of the reaction shown below. Include in your answer a mechanism, and account for any stereoselectivity you propose. m-CPBA i) PhMgBr ii) H₂O ? ? m-CPBA

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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3. Below is a substitution reaction that involves neighbouring group participation (NGP) in its mechanism. CH3 H- Br HBr Но CH3 (i) Predict the product(s) formed. Label the stereochemical assignments of the reactant and the product(s). Also, roughly predict the percentage(s) of formation of each of the product(s). (ii) Show a mechanism that agrees with your answer above.
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items d, e and f only
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Provide answer to the attached file
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3) Draw a stepwise mechanism for the treatment of the ester below with methyl Grignard followed by use curved arrows to indicate electron movement, show all intermediates and indicate all non-zero formal charges. FOCH, 1) CH,MgBr (excess), ether 2) H3O+ OH