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- 3) Fill in the red box(es) with the missing reactant(s), reagent(s), product(s), solvent, and/or conditions and write a reasonable mechanism for the reaction. Not every box needs to be used and not every box necessarily corresponds to only a single species. If no reaction occurs OR no reagents exist to perform the reaction state, “NOT POSSIBLE” AND explain why. HO OH dil. H₂SO4Fill in the red box(es) with the missing reactant(s), reagent(s), product(s), solvent, and/or conditions and write a reasonable mechanism for the reaction. Not every box need be used and not every box necessarily corresponds to only a single species. If no reaction occurs OR no reagents exist to perform the reaction state, "NOT POSSIBLE" AND explain why. 1) H,NNH,, HCI 2) КОН, Н, О, Д Your Answer:10. What is the major organic product generated in the reaction below? HO HO 40||!!!!!! (A) OH ...... (B) 1) 03 2) (CH3)2S HO O (C) H НО. (D)
- Fill in the red box(es) with the missing reactant(s), reagent(s), product(s), solvent, and/or conditions and write a reasonable mechanism for the reaction. Not every box need be used and not every box necessarily corresponds to only a single species. If no reaction occurs OR no reagents exist to perform the reaction state, "NOT POSSIBLE" AND explain why. OH O,N "ON N(CH,CH,), Your Answer:Provide reasonable arrow pushing mechanisms for a through d explain your reasoning for your chosen mechanism: SN1, SN2, or ion-pair dissociative. 4) CF;CO,H HC=CCH2CH2CH;CI H¿C=C CH;CH,CH;OCCF35 a) For each of the reactions below, describe a suitable reaction mechanism, stating the reaction conditions and naming the major productsi) Nitrobenzene and Chloromethaneft) 2-chloro-2-methyl propane and aqueous potassium hydroxide.iii) Propanone and hydrogen cyanide.iv) iodoethane and sodium hydroxide in ethanol.b) i) Discuss the bonding and extra.stability of benzene,ii) Using suitable examples, compare the reactivity of benzene and ethane,
- 5) Draw out the mechanism for the reaction given below, then generate a text description of the mechanism. OH excessWrite a complete reaction mechanism using CORRECT nucleophile for the following substitution reaction; CI OCH3 i) Nucleophilic substitution 1 (SN1). ii) Nucleophilic substitution 2 (SN2).C0% (b) HO, HCI Exercise 2 Diazonium ions (R-N2") are such powerful leaving groups that they offer a method for generati primary carbocations (Na gas is the leaving group). Interestingly, hydrolysis (solvolysis with water) any of the indicated diazonium ions (below) gives the same three products in exactly the same rati Provide a mechanism for these reactions consistent with this data. (Hint: Think about a commc intermediate for all the reactions.) OH HO. 48 48 4 Exercise 3 For the indicated atoms in each molecule, determine if they are homotopic. enantiotopic, diastereotopic or heterotopic
- 10. practice q 10 Compound Free Energy HO A A reacts with B in the presence of sodium hydride to give C as a major product. NH₂ Ph B ŌSO₂CF3 NaH, THF a) Provide a detailed mechanism for the formation of C and draw it in the box above. ( C b) Draw the reaction coordinate diagram of that reaction. Indicate with an arrow the rate- determining step of the reaction then draw its transition state: Reaction Coordinate c) The reaction rate observed was 5 x 10-2 M.s¹ when the concentrations of A and B were 0.2 M and 0.1 M respectively. Determine the rate of this reaction when the concentration of A and B are now 0.3 M and 0.2 M respectively. Show your work.The accepted mechanism for a rearrangement reaction is shown below. "Q Ph (1) (ii) Ph Ph HO™ fast Ph Ph HO O™ slow Ph aufae .Ar² LOH HO™ fast Draw a curly arrow mechanism for this transformation. Sketch an energy profile for this reaction, showing approximate relative energies for the reactants, intermediates, transition states, and products. HQ Ph (iii) When DO™ was used as the reagent, the rate of product formation was same as for HO™. Explain why this result shows that the third step is fast and cannot be rate-determining. Ph (iv) Write the predicted rate equation for this mechanism, and show how it was derived. (v) The starting diketone may have two different aryl groups, as shown below. Propose a ¹³℃ labelling experiment that would allow you to distinguish which of the two aryl groups had migrated in this situation. OH AR²0- Ar¹ C CQ1) suggest a suitable mechanisms for the following organic fon H₂O/H a) penta-1-ene sec-pentyl alcohol H₂SO₂ b) 4-methylpent-2-ene + Iso butane 2,4,5,7-tetramethyloctane FeCl, c) Benzoic acid + Cl₂ 3-Chloro Benzoic acid H₂SO d) cyclo pentanol. cyclo pentene e) nitrobenzene + HNO, H₂SO 1-3dinitrobenzene