Answers to PS5

Answers to PS5 - Chem 241 Answers to Problem Set #5 Fall...

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Chem 241 Fall 2010 1 Answers to Problem Set #5 Question 1. Draw methylcyclopropane, methylcyclobutane, methylcyclopentane, and methylcyclohexane in three dimensions in their most stable conformer (if applicable). Identify whether any of the substituents for each ring system are in eclipsing conformations. CH 3 CH 3 CH 3 H H H CH 3 H H H H CH 3 H H H H H H H H H CH 3 H H H H H H H H H H H CH 3 H H H H H CH 3 no other conformation possible all substituents are eclisping puckered ring conformation reduces eclipsing interactions methyl group in "equatorial-like" position no substituents are eclisping (but not perfectly staggered either) envelope conformation preferred methyl group in "equatorial-like" position hydrogens are eclispsing as shown chair conformation preferred methyl group in equatorial position no eclispsing interactions
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Chem 241 Fall 2010 2 Question 2. Draw each of the following compounds in three dimensions in their lowest energy conformations. Then, circle the more stable compound from each pair and give a
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This note was uploaded on 10/06/2010 for the course ES ES271 taught by Professor Machaut during the Spring '10 term at Colby.

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Answers to PS5 - Chem 241 Answers to Problem Set #5 Fall...

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