Test 3a 08 solution

Test 3a 08 solution - Letters may be used more than once or...

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1 Test 3b Name________________________________________ O Chem 2536 Pledge: I have neither given nor received information on this test. Spring 2008 _________________________________ 1) For the ketone below, show the mechanism for the addition of the 1 ° amine to form the imine. Use arrows in your mechanism to show movements of electrons. Use equilibrium reaction arrows where appropriate. Label the nucleophile and the electrophile. (12 pts) 2) Show two other resonance structures. Label the electrophilic positions (as E + ) on the compound below. (5 pts)
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2 3) Show the mechanism of the reaction below. Use arrows to show the movement of electrons and use equilibrium reaction arrows where appropriate. (10 pts) 4) Rank the following from most basic nitrogen (1) to least basic nitrogen(3). (5 pts) ________ ________ ________
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3 5) a. Provide the tautomer for each of compounds below. (3 pts) b. Circle the more stable isomer in each pair. (3 pts) 6) Matching – select one letter for each blank. There may be more than one correct answer.
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Unformatted text preview: Letters may be used more than once or not at all. (2 pts ea) ____ Enamine ____3-methylcyclohexanone ____Diketone responsible for popcorn lung ____Aldehyde ____CH 3 CCH 3 + 1)NaBH 4 2)H 3 O + ____CH 3 CH 2 CNH 2 + 1)LiAlH 4 2)H 3 O + 4 Provide the major organic product(s) for each reaction. (5 pts each) a. b. c. d. 5 e. f. g. h. 6 Table of Reagents 1) KMnO 4 2) H 3 O + 1) Zn(Hg), HCl 2) OH SOCl 2 MnO 2 N B S , , ROOR NaNO 2 , HCl, 0C 8) Provide the methods and reagents to make the conversions. (5 pts each) a. b. Extra credit (up to 3 pt): Retinal (Vit A aldehyde) allows us to see by reversibly bonding with the protein opsin by a reaction of what two functional groups? 7 Top of the Periodic Table 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 H 2 He 3 Li 4 Be 5 B 6 C 7 N 8 O 9 F 10 Ne 11 Na 12 Mg 1 3 Al 14 Si 15 P 16 S 17 Cl 18 Ar 19 K 20 Ca 21 Sc 22 Ti 23 V 24 Cr 25 M 26 Fe 27 Co 28 Ni 29 Cu 30 Zn 31 Ga 32 Ge 33 As 34 Se 35 Br 36 Kr...
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This note was uploaded on 05/07/2008 for the course CHEM 2536 taught by Professor Berg during the Spring '08 term at Virginia Tech.

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Test 3a 08 solution - Letters may be used more than once or...

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