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Unformatted text preview: carboxylic acid was known to be acetic acid, it is known that there is only one carbon attached to the carbonyl carbon. This carbon is terminal, meaning it has 3 hydrogen atoms. It is represented by a single at about 2.0 ppm that integrates out to 3.00. The carbon atom attached to the oxygen atom of the ester is downfield, represented as a triplet that integrated out to 2.09. There is a quintet at about 1.7 ppm that integrates out to 1.33 and a quartet at about 1.5 ppm that integrates out to 2.19. These two peaks help determine what is hanging off of the ester. The structures of the ester and alcohol are shown below. The 13 C-NMR did not prove to be useful because the reaction was not run to completion, and remnants of the alcohol and carboxylic acid were present. Questions 1. 2. isoamyl alcohol: 3-methyl-1-butanol isoamyl acetate: 3-methyl-1-butylacetate 3. a. b....
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- Spring '11