Aldehydes - Organic Chemistry - Exam, Exams of Organic Chemistry

Download Aldehydes - Organic Chemistry - Exam and more Exams Organic Chemistry in PDF only on Docsity! CHEM 3331-100 Spring 2007 Exam 2 Professor R. Hoenigman I pledge to uphold the CU Honor Code: Signature______________________________________________ Name (printed)____________________________________________________ Last four digits of your student ID number_______________________________ Recitation TA_____________________________________________________ Recitation number, day, and time______________________________________ You have 1 hour and 30 minutes to complete this exam. No model kits or calculators allowed. Periodic table and scratch paper are attached. DO NOT TURN THIS PAGE UNTIL INSTRUCTED TO DO SO. Recitation Sections: # Day Time TA SCORE: 122 Monday 5 pm Tom 121 Tuesday 8 am Tom Page 1 ________/11 Page 3_______/20 131 Tuesday 12 pm Tom 132 Tuesday 12 pm Lee Page 2 ________/24 Page 4_______/20 161 Thursday 8 am Tom 171 Thursday 12 pm Lee Page 5_______/25 TOTAL________/100 CHEM 3331, Spring 2007 Exam 2, page 1 of 5 1. (5 pts) Explain why aldehydes are more reactive than ketones towards nucleophilic attack. Draw structures to support your argument. 2. (6 pts) Give the IUPAC name for each of the following compounds. A. HO HO H O B. HO O C. O H O CHEM 3331, Spring 2007 Exam 2, page 4 of 5 5. (20 pts) Using arrows to show the flow of electrons, draw a mechanism for the following reaction. O H O O + NaOH(aq) CHEM 3331, Spring 2007 Exam 2, page 5 of 5 6. (25 pts) Propose an efficient synthesis for the following transformations. A. from any reagents containing 5 or fewer carbons O B. O from cyclopentanone and any necessary alcohols or inorganic reagents (Hint: this is not a self-condensation.)