(SP%2710%20235)%20Quiz%2012

(SP%2710%20235)%20Quiz%2012 - 2 O as an impurity might give...

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Chemistry 235 Due the week of April 12-16, 2010 Organic I George A. O’Doherty Quiz #12 Name There is a total of 10 points for this quiz. Answer all questions in the space provided. [I] (4 points) Draw (1 R ,3 R )-1,3-dimethylcyclohexane in its lowest energy conformation and then answer the following questions about the structure. a) Are the methyl groups cis or trans? b) Is the molecule chiral or achiral? [III] Please explain why a wet sample of cyclohexane (with H
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Unformatted text preview: 2 O as an impurity) might give an IR that is confusing to interpret. (2 points) [VI] Please explain why the 1 H NMR of compound A (methoxy-acetone) has three singlets, yet the 1 H NMR for compound B (ethyl acetate) has two multiplets (triplet and quartet) and one singlet. (4 points) O O A methoxymethyl methylketone O O B ethyl acetate quartet singlet singlet singlet singlet triplet...
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This note was uploaded on 09/18/2011 for the course CHEM 233 taught by Professor Shi during the Fall '08 term at WVU.

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