CH232_1998SPRING_EXAM3__[0]

CH232_1998SPRING_EXAM3__[0] - than that normally observed...

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Chemistjy232orgaricchemBtry M a y 1 9 9 8 Third Examination 1. Show how butanoic acid can be converted into each of the following compounds. In some cases 9 r O (til ^^ r~l "i v^ r~l T ^_-r~l i ^^ ^^ 1 t\ n, i i more than one step may be required . ("> (J '-i (-l^.ll^^Ni 2. What are the organic products of the following reaction sequence : O COM S ( x : | 2 N i l . , 3.What is the organic product for the following reaction : sol veil 1 CI I,, + C H 3 CI I 2 CIIO 4. W h en 5-hydroxyhexanoic acid is treated with a trace of suHuric acid , the following reaction occurs: CIT,CI IC1 T 2 CI I 2 CI I 2 C0
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Unformatted text preview: than that normally observed for an esterilication reaction . Explain . .' i 5 . Calculate the pK a of benzoicacid . Note that a 0.1M solution of benzoic acid has a pH of 2.6 . 6. Show how butanal can be converted into 2- hydroxybutanoic acid . 7. Give IUPAC names for each of the following : BrCH 2 C0 2 H ( b ) CH,CH 2 NIiCHj < VcO 2 H 8. Diphenylamine is a rather weak base ; the pKa of the conjugate acid , 0.79 , shows that diphenylamine is about 10" 4 as basic as aniline . Explain ....
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