The molecule PYRIDINE, 6tt electrons and is there pore aromuntre and is Assigned the Following structure contenus Since aromatk moleculey undergo electrophilic allomatic substitution, Pyridine should undergo The Following reaction + HNO3 12504 a. write all of the possible Mononitration Products that could Result From this roaction Based upon the reaction the reaction mechanism determine which of these producty would be the major Product of the hegetion

Using Benzene as starting materia Show how each of the Following molecules could Ve synthesked 9. CHI d. 10450 b 0 -50311 ८ City -5034 1-0-650 e NO2

BA HBr of the fol 1)=MgCI 2) H₂O major NaOEt Ts Cl Py (pyridine) 1) 03 2) Me2S 1

4. Provide a clear arrow-pushing mechanism for the following reactions. Do not skip proton transfers, do not combine steps, and make sure your arrows are clear enough to be interpreted without ambiguity. a) NHBoc ⚫OBn HO. H3C CO2CH3 -OBn H3C H3C. H3C. NHBOC CI CO2CH3

Draw structures of the following compounds and identify their role: mCPBA (MCPBA) DMS Py 9-BBN LAH Sia₂BH TsCI PCC t-BuOK LDA MeLi n-BuLi DMSO DMF Sodium Borohydride Lithium DiisopropylAmide 2

Using Luther's rule, calculate the reference potential of the Hg2+/Hg redox electrode. DATA: Electrode potentials E° = 0,854 V y E 0,788 V Hg2+/Hg 2+ Hg2/Hg

1) NaNH2 (excess) 1) NaNH2 CI CI 2) H₂O 2) Mel 1) 03 2) (CH3)2S Na NH3 (liquid) 1

CI 1) n-BuLi 2) 1) 03 HH T&Cl 2) H₂O 2

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