Draw the structures of two alkenes that would react to form the haloalkane below upon addition of HBr. Your alkenes should be different regioisomers that yield the haloalkane as the major product without requiring rearrangement to occur. xx Br
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- How many monochloro substitution products are produced when the alkanes below are chlorinated? Consider constitutional isomers only, ignore stereoisomers. a) b) The number of monochloro substitution products is 4 The number of monochloro substitution products is 3 X.4) Draw all of the possible alkene products from the following reaction. Indicate in what proportions these alkenes would be produced relative to one another. HO H₂SO4 RefluxCCH H20, H2SO4 H9SO4 CH3 Alkynes do not react directly with aqueous acid as do alkenes, but will do so in the presence of mercury(II) sulfate as a Lewis acid catalyst. The reaction occurs with Markovnikov regiochemistry, so the OH group adds to the more highly substituted carbon and the H adds to the less highly substituted carbon. The initial product of the reaction is a vinyl alcohol, also called an enol. The enol immediately rearranges to a more stable ketone via tautomerization. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions Hjö: -CH3 -CH3 H3O*
- 10. The relative rates of epoxidation reactions of the following four alkenes are 1, 22, 484, 6526. Which alkene does feature the relative epoxidation rate of 484? 11. Alkynes undergo addition reaction with HCl, forming corresponding alkenyl bromide. Please write the rate law of such a reaction between butyne and HCl.1. Consider the following reaction - Dehydrogenation of Methyl Cyclohexane (MCH) to Toluene (TOL) using a Precious Metal (Pt) supported on Alumina. CH3 CH3 2 () + 3 H₂ Typically, hydrogenation of a cyclo-alkane, like MCH, occurs in 3 or more stages, where one bond is dehydrogenated per stage, eventually resulting in the dehydrogenation of 3 bonds. Strong adsorption of MCH is likely to occur, but the adsorption of hydrogen (either as a molecule on a single site OR as an atom on a single site) is unclear. Therefore, in this question, two types of reaction mechanisms are to be considered, as discussed below: (a) You are to first propose a reaction mechanism which includes adsorption, surface reaction, and desorption. For each of the following cases, please write down a full set of elementary reaction mechanisms. (0) Extraction of Hydrogen in 3 stages, based on dehydrogenation of each bond-where the ensuing hydrogen product is adsorbed as a molecule on a single site, in one step.…i Ii. In. * e A M 1:-r CH3-CH-CH2-CH-CH3 C2H5 Br 2-bromo-4-methylhexane 2-bromo-4-ethylpentane This compound CH3CH2CH is primary carbon secondary carbon tertiary carbon اكتب اسمك الرباعي بال لغه العربيه إجابتك * Weak acid has Ka is less than 1 true False II
- Draw a structural formula for the product formed upon hydroboration/oxidation of the alkene below.Name and draw structural formulas for all monobromination products formed p reatment of 2-methy/propane with Big. Predict the major product based on the regioselectivity of the reaction of Br, with alkanes.Which represents an efficient synthetic route to go from an alkane to an alkene? O elimination with NaNH2, followed by a water workup O anti-Markovnikov hydrohalogenation, followed by elimination O radical bromination, followed by elimination O hydration, followed by elimination O hydration, followed by ozonolysis of the double bond
- 10. Complete the following halogenation reactions for alkanes. Draw the structures of one of the many possible products for each reaction. Name the reactant and product. a) b) c) СЊ- CH-CH2-C+3 + Br2 CH₂ + Cl2 снен CH3-CH-CH2-CH-енз CH2-CH3 + F2 UV UV1. The acid-catalyzed elimination of an alcohol is an equilibrium reaction and requires special reac- tion conditions to favour the formation of the alkene product. What chemical principle controls the amount of alkene product that is produced? Provide two laboratory techniques that can be used to obtain good alkene yields in alcohol elimination reactions.Can the following alkanes (A and B) be synthesized from the same alkene via a hydrogenation reaction? If this is possible, explain your rationale for why and draw the required alkene. If this is not possible, explain your rationale for why and draw the alkenes required to make each product. Clearly label which alkene would provide which alkane product. CI H3C Is it possible? YES or NO CH3 H3C- H- Rationale: H;C- CH2CH3 CI CH2CH3 A В Alkene(s) Structures:
