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- Don't use AI.2. Which one of these alkenes would be likely to experience a carbocation rearrangement when treated with aqueous acid (hydration)? A) B) C) D) None of these would undergo a rearrangement.Question 5. (20 points) Consider the following reaction. + PhLi (2 eq.) then water a) Propose a structure for the final product. b) Give a complete mechanism for the transformation. c) Draw an energy diagram of the transformation and briefly comment on the relative energies of the starting material, final product, and any intermediate(s), and about the rate determining step.
- thanks.a) Consider the reaction of HBr with ethylene and propylene. At roomtemperature the reaction of propylene with HBr is much faster than thereaction with ethylene.Using reaction energy diagrams and your knowledge of carbocationstability explain why this is so. b) Xylene (dimethylbenzene) is a commonly used chemical in the printingindustry and as a cleaning solvent for oily waste. It is also used whenpreparing histological samples to remove waxes from biological samples.Draw the three possible structures for this compound and give the UPACnames for each. Define which structures are ortho, meta, and para.Question 5 1). Draw all resonance structures for the carbocation intermediate formed by para attack; circle the resonance structure that is particularly unstable. N- N Cl₂ AICI 3 H 2). Draw all resonance structures for the carbocation intermediate formed by ortho attack; circle the extra resonance structure that is particularly stable. H a Aer ANSAS C HNO3 H₂SO4
- 6.The three compounds below can form a carbocation under aqueous acidic conditions. Draw the structure of Carbocation. || =2. Draw the carbocation rearrangements for each of the following carbocations. ye9. For the following carbocations: 1) determine if they rearrange, and 2) if they rearrange, draw the expected product and the curved arrows to complete the rearrangement.
- 5. Draw the mechanism that produces the major product for the following reactions. Do not draw minor products. Include resonance structures of the intermediates. Make sure you add all arrows! For both the reagents reacting together and resonance structures. Lone pairs must be shown on atoms that have charges. This includes the nitro group when drawn out. Arrows either start at electrons and end on at atom or start in the middle of a bond and end on the atom. 1) 2) CI NO₂ H₂N-CH3 (one major product) CI-CIBetween the two positions, which will have a most stable in the carbocation intermediates. a) ortho b) para c) metha2) Use your understanding of reaction rates to identify the faster reaction for each of the following pairings. HC Br O CECH Br 2 equiv of OR H NH2 Br 2 equiv of ONH2 Br