ochem 3rd test 2007 key

ochem 3rd test 2007 key - CHEMISTRY 314-01 MIDTERM # 3...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
CHEMISTRY 314-01 MIDTERM # 3 – answer key April 12, 2007 Statistics: Average: 70 pts (70%); Highest: 95 pts (95%); Lowest: 25 pts (25%) Number of students performing at or above average: 26 (59%) Number of students at 55% or below: 9 (20%) 1. (5 pts) Mark as true ( T ) or false ( F ) the following statements. Do not explain! ( F ) Carboxylic acids are not Brønsted acids; ( T ) Base-promoted hydrolysis of esters is irreversible; ( F ) Esters can be formed from carboxylic acids and alcohols in both acid-catalyzed and base-promoted reactions; ( F ) Lactones are cyclic amides; ( F ) β -ketoesters are more acidic than carboxylic acids; 2. Circle ALL that apply: A. (3 pts) The following reactions are used to generate carbon – carbon bonds: a. Aldol condensation; b. Claisen condensation; c. Ester saponification; d. Lactam formation; B. (3 pts) Circle the reagents that CANNOT be used to convert a carboxylic acid to an acid chloride: a. Thionyl chloride; b. Alkyl chloride; c. Sodium chloride; d. Phosphorus pentachloride; C. (3 pts) The following compounds CANNOT undergo aldol self-condensation: a. Acetone; b. Acetaldehyde; c. Formaldehyde; d. Benzaldehyde; D. (3 pts) The following esters CANNOT form enolates: a. Ethyl acetate; b. Ethyl formate; c. Diethyl carbonate; d. Ethyl propanoate; 3. (5 pts) Provide the correct structure, matching each of the following names: 5.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This homework help was uploaded on 04/20/2008 for the course CHM 314 taught by Professor Benin during the Spring '08 term at University of Dayton.

Page1 / 5

ochem 3rd test 2007 key - CHEMISTRY 314-01 MIDTERM # 3...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online