Sample Midterm Answers

Sample Midterm Answers - Sample midterm CHM 2120A 2009 1...

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Unformatted text preview: Sample midterm CHM 2120A 2009 1. Name the following compouncis. (8 pts) K ’ ' é 1 $23K"? i‘mg: g’i‘iékxaéac, k’ ,r » - EECKEX 5} 0A 5% 33K 8%? {j}? COZH i%¥§‘§a§§3€fi%§$éi C‘ { , x x f g g) or?) 0H 5‘23st 5‘: E’d : :3- ?M M33 {gsfiéifixifififi ' a 2t“ “ékm‘flli‘flfiw © ““‘ 2v {:2}? é ‘ e) m w gm F f) {1 a,» 3» HSCO P&"i§§g§2 beam; COZH S $ OCH3 ( ‘52 L2“"‘%%ij$$?3”?»«ngd‘é .gx , g ‘ {:an «x 1533 31% @3kang {3 2. Which of these compounds are aromatic? Justify your answer. (8 pts) O: :O 5% g: 2 fix ’ (a; T“ : is»; b) 3. Draw the mechanism and products for the following reaction. (5 points) b, Will the reaction favour starting materials or products? (I point) e justify your choice in part be (3 points) i‘ Kiss»: 3, ' k‘ig ‘ 21. Draw the mechanism and products for the following reaction. (5 points) b. Will the reaction favour starting materials or products? (1 point) c. Justify your Choice in part b. (3 points) I 9 E H V fl», V5“): C é A F,“ w ,, we, z: kw :: 3. Fill in the boxes with either the required reagents or the products: (8 points) 6. Under Bronsted acid conditions would you expect analine to be a strongly electron donating group? Why or why not. Use an example of Bronsted acid catalyzed HAS to justify your answer. (10 pts) Hemmxaém Edi}? as), ex R%N\§i iii/336% Ceecmm ‘HAQ L15 (Swim Kg em, \3 Y Q ~ , 4 ;Q , . {yam gagging; [m (admin iexlé/KVdeifit “m ’ ‘ W, if? @efz & 2 M 63 gag}, F g”? W ‘ TL? \C/ e, E; \R ’1 K é: gé’emsleai flack @fiflgfig 2(ny Lg) “v; (amiml ~53: alas l: {iii {Mia {fiemxeekmb 7. Provide a synthesis of the {allowing compouné starting from bromobenmne. (12 pts) 8. Provide a detafied mechanism for the following reaction. Include resonance structures to justify your regiochemistry. (10 pts) 0 303 3 H2804 E a v Q t >§ ‘ Z ! 5/5 W , {Vi M I r_ 5 far &:~, x m, mos <3 i ’ ». ' " f ‘ 2 ,5 5 Mg i my, ’2 <1 " (i ("a E S I 5:" ' {fa * $651 imié 1%;KC},_, wig/R iéi’fiéfiifi’ ' “5 i»); “x ” E . “J x‘ "r “ l¥&\€:;{~ gflka§-<ig ; 9. Provide sgmtheses of the foflowing two compounds from the starting materiais indicated. a) (4 pts) I0. Give the mic: or anic reduct of each of the foliowin reactions. Mechanisms are not re aired, but i A g . P ‘ . g I . C} part marks might be ngen for mcerrect answers wzth plausble mechanisms. (8 points) OSO , NMO /\/‘\/ 4 //\‘ 5:} i325 E35 3&5? W? 4% b. (elimination) NaOCH3 HOCH3 (solvent) I,” ix“; V ghbmmédfam 1% fing cime 2: :"wggfi , é A/(li/ 1. ClSOzCHg, weak base 2. NaNHCH3 ‘/ J‘v 6&2 A5; m m fist“ng i3 is my“ Cit/5% ...
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This note was uploaded on 12/22/2011 for the course CHM 2120 taught by Professor Dr.flynn during the Spring '10 term at University of Ottawa.

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Sample Midterm Answers - Sample midterm CHM 2120A 2009 1...

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