By using "arrow-pushing diagram", draw the mechanism for each of the following reactions and predict the reaction as SyI, Sy2, El or E2. (i) OH conc. H,SO, 120 °C CH3 (ii) Br NaOCH; CH,OH (iii) -CH, CH,CH,OH warm
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- Predict the product of the following reaction and classify the reaction Pb+FeSO4---> PbSO4+ ______(ii) The elimination reaction between 2-bromobutane and NaOCH2CH3 gives two organic products. Draw a mechanism for the reaction which produces the major organic elimination product and provide a rationale as to why that is the major product.1.When 2-methyl-1-butanol is dehydrated in an acid medi- um to an alkene, it yelds mainly 2-methyl-2-butene rather than 2-methyl-1-butene. This indicates that the dehydra- tion to an alkene is at least a two-step reaction. Suggest a mechanism to explain the reaction.
- In the presence of acid such as H2SO4, 3,4-dimethyl-1-pentene undergoes isomerization to 2,3-dimethyl-2-pentene (shown below). Write a complete mechanism, showing all steps and using curved arrows to explain this observation.Give the major organic product(s) for each step in the following reactions (g,h,i,j)The nitroso group, −N=O, is one of the few nonhalogens that is an ortho- and para-directing deactivator. Explain this behaviour by drawing resonance structures of the carbocation intermediates in ortho, meta, and para electrophilic reaction onnitrosobenzene, C6H5−N=O.
- Predict the product, draw the mechanism, and plot the reaction coordinate diagram for theE1 reaction.Provide a reasonable arrow-pushing mechanism for Reaction 5b, and explain the the stereochemical outcome. 5d belowa. Propose a mechanism for the following reaction: b. Given that ΔH° for the reaction is -42 kcal/mol and the bond dissociation enthalpies for the C¬H, C¬Cl, and O¬H bonds are 101, 85, and 105 kcal/mol respectively, calculate the bond dissociation enthalpy of the O¬Cl bond.
- Propose a detailed mechanism for the reaction below (in the attached picture), showing the structure of thestable intermediate and using curved arrows to indicate electron flow in each stepTwo chemists at Dupont found that ICH2ZnI is better than diazomethane at converting a C=C bond to a cylcopropane ring. Propose a mechanism for the reaction, now known as the Simmons–Smith reaction in their honor.predict the main product for the addition of 1 equivalent of HX to the following compounds and write the mechanism of the reaction