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- 1) Nucleophilic substitution reaction of alkyl halide is a process when nucleophile replace the leaving group of alkyl halide. Propose the mechanism and product(s) for the following substitution reaction.Predict the product formed in the nucleophilic aromatic substitution reaction between 1-chloro-2,4-dinitrobenzene and sodium methoxide (NaOCH3). Draw the mechanism for the reaction, showing why the product you have selected is formed.b) Listed below are several hypothetical nucleophilic substitution reactions. None is synthetically useful because the product indicated is not formed at an appreciable rate. In each case provide an explanation for the failure of the reaction to take place as indicated. OMe HO + OMe + OH HO + CH; OH
- Explain the relevance pi* (antibonding) -molecular orbitals have in nucleophilic addition reactions of carbonyl containing compounds.Explain the Process of Determining the Mechanism of Nucleophilic Substitution ?Explain why pentane-2,4-dione forms two different alkylation products (Aor B) when the number of equivalents of base is increased from one totwo.
- a) Provide a mechanism that accounts for the product formed in the following reaction. OH CH H" ► 1-ethoxy-1-methyleyclohexane + CH,CH,OH b) Show the structure of the product(s) formed in the following reaction and write the mechanism for the reaction. OH CH + (CH;);COH#16b. Provide the missing reactants, reagents, or products for the following reaction sequences below.What is the source of the nucleophilic attack? How does the oxygen get protonated? What causes the elimination reaction?
- The reaction of methylpropene with HBr, under radical conditions, gives two intermediates. Propose a mechanism for the formation of the two products. Propose a mechanism for the following reaction and use electronic factors to account for the formation of a major product: CH2 CH2Br N-Bromosuccinimide (NBS) ho, CCI4 Draw the structure of an antioxidant, Vitamin E free radical and use resonance structures o account for its stability.Write a mechanism that accounts for the formation of ethyl isopropyl ether as one of the products in the following reaction. CI OEt HCI EtOH Write the mechanism for step one of this reaction. Show lone pairs and formal charges. Only the acidic hydrogen should be drawn out with a covalent bond. Write the mechanism for step two of this reaction (where the product of step one reacts with the solvent, ethanol). Show lone pairs and formal charges. Only the acidic hydrogen should be drawn out with a covalent bond. Write the mechanism for the last step of this reaction (formation of ethyl isopropyl ether). Show lone pairs and formal charges. Only the acidic hydrogen should be drawn out with a covalent bond. CI will act as the base in this reaction.6) Which reagent would be best to convert cyclohexanol into chlorocyclohexane?