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- Draw the structure for the alkyl bromide that will produce the alkene shown as the only product of an E2 reaction. хоWhy do cis-1-bromo-2-ethylcyclohexane and trans-1-bromo-2-ethylcyclohexane form different major products when they undergo an E2 reaction?22. Draw all the alkene products that can be prepared in the following E2 reaction. Circle the alkene that you expect to be the major product based on Zaitsev's Rule. Use curved arrows to show how the major product forms. ما "OC(CH) analghaq my2A 16nsiqi UnA 2 ebileria lenims ocation intermediate affect the rate of an El reaction? mainsroom 13 no 101 ws! sbubal .mainsrbM 13 phen Snobia to mzinaroam bevlovni el sisibamish 149
- Draw the alkene structure that produced the following compounds in a ozonolysis reaction as specified. 1. O3 2. (CH3)2S You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. In cases where there is more than one answer, just draw one.Draw the organic product that is expected to form when the following compound is oxidized under biological conditions. oxidation SH reduction • You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. • If no reaction occurs, draw the organic starting material.Stereochemistry The alkyl bromide below can undergo an E2 but not in its shown conformation. Draw the conformer (as a line drawing, not a Newman projection) out of which an E2 elimination can occur, with all bonds/groups in the original drawing included. 'Bu = tert-butyl H3C H H3C Br tBu alkyl bromide (b) Draw the alkene formed in the E2 elimination reaction of this alkyl bromide promoted by potassium tert-butoxide (KOtBu). (c) Indicate if this E2 elimination reaction is stereospecific or stereoselective (write or circle stereospecific or stereoselective) Regioselectivity (d) Two potential products can form in the following E2 elimination promoted by KOtBu. Circle the major alkene product. (e) KOtBu H3C H3C Indicate if the reaction in (d) is under kinetic control or thermodynamic control. (write or circle kinetic or thermodynamic control) 5
- Determine the alkene from which the product shown can be made via a catalytic hydrogenation. H₂, Pd/CDraw a detailed arrow pushing mechanism for the following reaction. In the rate-determining step unimolecular (SN1) or bimolecular (SN2)Draw the alkene that would react with the reagent given to account for the product formed. ? + H₂O H₂SO4 CH3 CH3CCH3 OH You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. Sn [F ChemDoodleⓇ
- To make Halocyclopentane, what reagents and substartes are needed? Which one(below) is related with the Halocyclopentane? Esterification, Alcohol Halogenation ,Alkyl Halide Solvolysis, Alkene Hydration, Hydroboration, Alkene Bromination, Alkene Dihydroxylation, Epoxidation, Diels Alder, Aldol, Grignard Addition, Benzene Nitration, Friedel-Crafts, Carbonyl Reduction, Claisen Condensation, Alcohol OxidationNAME and DRAW the STRUCTURE of ALL the alkenes which could undergo catalytic hydrogenation at 900°C to form methylcyclopentane. Circle the alkene with the HIGHEST stability and X the alkene with the HIGHEST heat of hydrogenation. Give reasons for your choice.The Kharasch reaction, named after its discoverer who also invented the medical preservative thimerosal, is a radical process in which carbon tetrachloride is added across an alkene. Draw a mechanism showing initiation and propagation steps for this reaction and explaining the observed regiochemical outcome. CIl4, heat R R .Cl3 Ph. Ph
