ochem 3rd test 2006

ochem 3rd test 2006 - CHEMISTRY 314-01 MIDTERM # 3 April...

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CHEMISTRY 314-01 MIDTERM # 3 April 11, 2006 Name ..................................................................................... The total number of points in this midterm is 100. The total exam time is 120 min (2 h). Good luck! 1. (5 pts) Mark as true ( T ) or false ( F ) the following statements. Do not explain! Carboxylic acids can serve as Brønsted bases; Base-promoted hydrolysis of esters is irreversible; Esters can be formed from carboxylic acids and alcohols in both acid-catalyzed and base-promoted reactions; Amides are the least reactive of all acid derivatives; β -ketoesters are more acidic than water; 2. Circle ALL that apply: A. (3 pts) The following classes of compounds ALWAYS contain cyclic structures: a. Lactones; b. Dicarboxylic acids; c. Lactams; d. α,β -unsaturated carbonyl compounds; B. (3 pts) Carboxylic acid anhydrides are less reactive than: a. Carboxylic acid chlorides; b. Carboxylic acid bromides; c. Esters; d. Amides; C. (3 pts) The following compounds CANNOT undergo Claisen self-condensation: a. Ethyl benzoate; b. Methyl 2,2-dimethylpropanoate;
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ochem 3rd test 2006 - CHEMISTRY 314-01 MIDTERM # 3 April...

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