Problem Set #6 Alkanes and Conformation

Problem Set #6 Alkanes and Conformation - 3 CH 3 CH 3 CH 3...

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CH 3 CH 2 CH CH CH 3 CH 3 CH CH 3 CH 3 Cl H Cl H CH 3 H H CH 3 CH 2 CH CH 2 CH 3 CH 3 C C CH 3 CH 3 CH 3 H CH 3 Cl Cl H H CH 3 CH 2 CH 3 CH 2 Organic Chemistry I Problem Set 6 Alkanes and Conformation I. Write names (IUPAC or common) for the following structures: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
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II. Write structural formulas: 1. neopentane 2. isobutyl bromide 3. sec -butylcyclopentane 4. trans -1,2-dichlorocyclopropane III. Answer these: 1. Construct an energy diagram for rotation about the C 2 – C 3 bond axis of 2- methylbutane. Write Newman projections at all maxima and minima.
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2. Write structures which clearly show the most stable conformation for each of these: 1. ethylcyclohexane 2. cis -1-isopropyl-2-methylcyclohexane 3. trans -1,4-dimethylcyclohexane 3. An alkane of formula C 6 H 14 is found to produce only 2 monochloro derivatives when reacted with Cl 2 and light. Write the structure of this alkane.
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CH 3 CH 2 CH 2 CH 3 CH 3 C CH
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Unformatted text preview: 3 CH 3 CH 3 CH 3 CH CH 2 CH 3 OH CH 3 CH 2 CH CH 3 CH 3 CH 3 CH CH 3 CH 3 4. Discuss the types of strain in cis-1,2-dimethylcyclopropane which cause it to contain more energy than other isomers of C 5 H 10 . 5. Use the letters and arrange these compounds in order of increasing boiling points. a. b. c. d. e. _____ < _____ < _____ < _____ < _____ 6. Chlorination of alkanes is often not very useful because of the formation of multiple products. For example, write names and structures of all dichloro products formed in the chlorination of butane. 7. These names are incorrect. Give the correct names. 1. 2-ethylpentane ____________________________________ 2. 5-ethyl-4-methylhexane _____________________________________ 3. 2,3-diisopropylbutane ______________________________________...
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This note was uploaded on 03/14/2011 for the course CHEM 238 taught by Professor Raucher during the Spring '04 term at University of Washington.

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Problem Set #6 Alkanes and Conformation - 3 CH 3 CH 3 CH 3...

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