Which of the following can exist as a meso isomer? CI Br CI Br Why do people like Drake's "music"? 11 IV Which of the molecules below arises from the anti-Markovnikov hydrohalogenation with HBr of the alkene shown? 1 Br 11 Br HOO E Br Br IV Br
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- Questão 10A certain hydrocarbon had the molecular formula C16H26 and contained two triple bonds. Ozonolysis resulted in CH3(CH2)4CO2H and HO2CCH2CH2CO2H as the only products. What is the reasonable structure for this hydrocarbon? Hexadec-6,10-dino undec-1,5-dino Hept-1,5-dino hex-1,5-dino nahWhich of the following reaction conditions would result in Markovnikov addition to an alkene? O[1] BH3; [2] H₂O2/HO™ Cl2 HBr, ROOR CH3OH, H₂SO4Draw the organic product that is expected to form when the following compound is oxidized under biological conditions. oxidation reduction 0 SH • 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. / BO O-Sn [F ChemDoodle Previous M
- which of the following reagents can oxidize an alkene? H2/Pt, HCl, H2SO4, KMnO4Na, NH3 H3C-C=C-CH3 CH3 H3C° Alkynes are reduced to trans alkenes by a process called dissolving metal reduction. The reaction uses sodium or lithium metal as the reducing agent and liquid ammonia as the solvent. The method is specific in the formation of trans alkenes from alkynes. The method involves two successive transfers of single electrons from the alkali metal to the triple bond, with abstraction of protons from the ammonia solvent. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions .CH3 H-NH2 CH3 :NH2 H3C H3CWhat is the major products formed when benzene reacts with the following : 1- chloro-2,2-dimethylpropane + AICI, 2- Fuming H,SO4 3- Iodine + CuCl2 US X x i BI !!
- Draw a structural formula for the product formed upon hydroboration/oxidation of the alkene below. CH3 OG 1 Use wedge and hash bonds ONLY for rings. Do not show stereochemistry in other cases. • If the reaction produces a racemic mixture, just draw one stereoisomer. ● 981 CH3 ***** // Q Y ? [F BHydration of alkynes is performed in the presence of Hg?+ salts but hydration of alkenes can be efficiently catalyzed by Brensted acids. Briefly explain why a transition metal is needed in reactions with alkynes.Draw the structural formula of the product of the reaction shown below. + H₂O AAVIL H₂SO4 • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • If the reaction produces a racemic mixture, just draw one stereoisomer. Sn [F Ⓡ ChemDoodle
- Which of the following alkenes will yield a meso dihalide when reacted with Br, at room temperature? %3D II IVCCH 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*Which choice best describes the alkene below?