Koofer-14 - CEM251, Summer 2009 Midterm #2 CEM 251, Summer...

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CEM251, Summer 2009 Midterm #2 1 CEM 251, Summer 2009 Section 705 Midterm #2 June 24, 2009 Name:______________________________ PID: _______________________________ This is a closed book and note examination. If boxes are provided for your answers, only what is written in the boxes will be graded . You have 90 minutes to complete the test. Question Points Score 1 12 2 6 3 8 4 6 5 10 6 6 7 10 8 30 9 12 Total 100
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CEM251, Summer 2009 Midterm #2 2 1. Provide a name or a structure for the following compounds (Indicate stereochemistry where appropriate)( 12 pts, 2 pts each box ) a. (1S,3R)-1-chloro,3-ethyl cyclopentane b . 4,4-dimethyl-2-hexyne c . Vinyl Chloride d. e. f. F include R/S Br OH include R/S Cl Cl 3-fluoro-4-methyl-1-hexen-5-yne (3R)-1-Br-3-hydroxy-butane (3S)-3-methyl-cyclohexene
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CEM251, Summer 2009 Midterm #2 3 2. Propose a mechanism for the following S N 1 reaction. (You must show all steps and the structure of the intermediate using curved arrows to indicate the flow of electrons in each step.) (6 pts) Br dilute NaOH OH methyl shift OH
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This note was uploaded on 10/06/2011 for the course CEM 251 taught by Professor Rathke during the Spring '07 term at Michigan State University.

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Koofer-14 - CEM251, Summer 2009 Midterm #2 CEM 251, Summer...

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