Exam3B - Tuesday, April 21, 2009 CHM 2210 Sec. 4140 Exam #3...

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Tuesday, April 21, 2009 CHM 2210 Sec. 4140 Exam #3 Form B Question Page 1 of 2 For your answers use the answer sheet Place your answers on answer sheet, page 1 : Graded by 1. ( 5 pts ) Sebastian Complete the structures of all monobromination products formed under the conditions shown (Note: The C–C σ scaffolds are provided). Circle the structure of the most rapidly formed product . Mark any chiral center in the products with an asterisk (*) [Point/s will be deducted for wrong answer/s]. 2. ( 7 pts ) Sebastian Consider several ways of converting an alkene into a brominated product. Provide the reagents (structural formula where requested), reaction conditions, solvents, etc. that are required to form the three products . 3. ( 14 pts ) Sebastian Consider the propagation steps in the bromination of methylenecyclobutane. (a) Draw the appropriate curved electron arrows to indicate the electron flow in the first step. (b) Draw two structures for the resulting organic intermediate (with the proper arrow symbol between them), AND provide the inorganic by-product . (c) Give the reagent for the second step. (d) Draw the structures of both final organic products AND provide the species to be reused for the first step. 4.
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This note was uploaded on 06/15/2009 for the course CHM 2210 taught by Professor Reynolds during the Spring '01 term at University of Florida.

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Exam3B - Tuesday, April 21, 2009 CHM 2210 Sec. 4140 Exam #3...

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