CHEM 432 Final: CHEM 432 final432_2010_final

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31 Jan 2019
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This exam contains 12 pages, counting the cover sheet. Scrap paper is provided for rough work, but will not be graded. page 1 of 12. Provide the product, starting material or reagents (as indicated) for 5 of the following 6 reactions. Specify the stereochemical outcome of the reaction wherever appropriate. If you attempt all 6, be sure to cross out the one you don"t want me to mark. Provide a reasonable mechanism for 2 out of the following 3 transformations (here, and on the following two pages). If you attempt all 3, be sure to cross out the one you don"t want me to mark. / 10 page 3 of 12 page 4 of 12 page 5 of 12. The following synthesis of ibogamine was completed by james white"s group in 2000. Fill in the blanks corresponding to reagents or intermediates where indicated. For the two requested mechanisms (a and b), please write your responses on the subsequent pages.