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Unformatted text preview: product (s) if any , for each of the reactions shown below. OTs OH F-- SCH 3 Br OH TsCl OH, SN 1 conditions SCH 3 OTs HO No rxn 4a . (6) MECHANISM. Draw a mechanism for the following reaction, showing the intermediate ( 2 marks ), all curly arrows describing electron movement ( 2 marks ) and all charges ( 1 mark ) (if applicable). Does this reaction go with inversion or racemization? ( 1 mark ) racemization OH, S N 1 conditions Cl HO + HO H-OH 4b .(6) Use the appropriate chemical equations to show why NaNH 2 (NH 3 , pKa 33) is capable of quantitatively deprotonating an alcohol (ROH pKa 16). NH3 + H2O NH2- + H3O + Ka 10 -33 Rxn 1 HOR + H2O -OR + H3O + Ka 10 -17 Rxn 2 Add Rxn 1-1 + Rxn 2 HOR + NH2- -OR + NH3 K 10 16 favourable!! 5. (6) Stereochemistry . Draw all of the structural isomers of C 4 H 9 Cl and indicate which of the molecules, if any is chiral. Cl Cl Cl Cl chiral...
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