CHM 1321 Study Guide - Midterm Guide: Molecular Geometry, Hydrogen Bond, Boiling Point

How did you purify the esterification reaction? (3 pt.) c) distillation d) chromatography a) recrystallization e) mass spec b) there was no purification step 5. What would happen if you set up the benzopinacol reaction (the first one after the midterm) in a test tube and wrapped it in aluminum foil? (3 pt.) a) the reaction would get hotter and generate more product b) no reaction would occur c) the reaction would get colder and generate more product d) the test tube would have broken 6. What two compounds would you use to make hexyl pentanoate using a Fisher esterification? Draw all compounds, starting materials and product. (5 pt 7. A student used a 1:1 ratio of alcohol to carboxylic acid (and an acid catalyst) for the reaction above in Q6, and another student used a 2:1 ratio of the two starting compounds. Who got the better yield? Why? (4 pt 8. Predict the product of the following Aldol reaction. (3 pt.) H,p

Problem Set9 Ch. 6.11, Ch.7 Fall 2017 Due: November 1 CHM 2510, section 02 Name: Score: /50 pts 1. (6 pts) Under each reaction, circle the characteristic for each criterion, and then use this information to decide by which mechanism the reaction is proceeding. NaBr e) Br DMSO Substrate (circle all that apply) Me 2 Leaving group (circle one) Nucleophile (circle one) Solvent (circle one) Overall mechanism (circle one) 3 allylic good strong polar protic Sn1 weak polar aprotic ÖTs CH OH OCH3 substrate (circle all that apply-Me Leaving group (circle one) Nucleophile (circle one) Solvent (circle one) Overall mechanism (circle one) 一一2·ーー3")一一allylic good strong 1· benzylic bad weak polar proticpolar aprotic Sy1 SN2 2a. (5 pts) Fill i the arrows for the following transformation. H. Ha OCH3 아4,0 * Hz。 H.O * CHyOH CH OH2 b. (4 pts) Draw a reaction coordinate diagram for the mechanism in 2a. Be sure to consider the relative energies of the reactants, products, and intermediates as you draw your diagram.