0771-Exam-0A-questions

0771-Exam-0A-questions - Friday, January 28, 2011 CHM...

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Friday, January 28, 2011 CHM 2211-0771- Sample Exam #0 Form A Answer Page 1 of 2 Questions . For your answers use the Answer sheet Place your answers on Answer sheet, Page 1 : 1. ( 6 pts ) Write the IUPAC names (including stereochemistry , where relevant) for both compounds. 2. ( 10 pts ) (a) Provide reagent 1 and (b) reagent 2 that are required to convert the alkene into two 1,1-dichlorocyclopropane derivatives. (c) Complete the product structures . [Place the missing substituents in the small boxes] (d) Determine the relative configuration (= position of substituents) in the alkene and in the products. (e) Define the stereochemistry of the reaction (complete the term on the Answer sheet). (f) Decide if both products are formed in equal amounts, or in unequal amounts . [Check the correct answer] (g) Decide if both products are enantiomers, diastereomers, anomers, or meso compounds. [Check the correct answer] [Only full credit for (f) and (g): Answers to (f) and (g) must be correct and consistent] 3. ( 12 pts ) Consider the following Wittig reaction : (a) Draw the full structure of the salt (with charges) resulting from benzyl bromide and PPh 3 . (b) Provide the base that is required and capable to convert the salt (a) into an ylide. (c) Draw the resonance structure of the resulting ylide that shows it as a C-nucleophile . (d) Draw the structure of
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This note was uploaded on 10/04/2011 for the course CHM 2211 taught by Professor Castalleano during the Spring '06 term at University of Florida.

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0771-Exam-0A-questions - Friday, January 28, 2011 CHM...

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