An alkene having the molecular formula C9H₁4 is treated sequentially with ozone (03) and zinc/acetic acid to give the product/s shown. O 8 Draw a structural formula for the alkene.
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- Draw the structure(s) of all of the alkene isomers, C5H10, that contain a branched chain. Consider E/Z stereochemistry of alkenes.Draw every stereoisomer for 1‑bromo‑2‑chloro‑1,2‑difluorocyclopentane. Use wedge‑and‑dash bonds for the substituent groups, and be sure that they are drawn on the outside of the ring, adjacent to each other. Clearly show stereochemistry by drawing the wedge‑and‑dashed bonds like the example. You should replace the X with the appropriate halide.Drawing on what you know about the stereochemistry of alkene addition reactions, a. write the mechanism for the reaction of 2-butyne with one equivalent of Br2. b. predict the configuration of the product of the reaction.
- You are required to synthesize 2-bromopentane from the reaction between an alkene with HBr. Which alkene, 1-pentene or 2-pentene, should you react with HBr in order to get 2-bromopentane? Give an explanation.Most methods of making alkenes yield predominately the more stable isomer, usually the trans. Outline all steps in the conversion of a mixture of 75% trans-2-pentene and 25% cis-2-pentene into essentially pure cis-2-pentene.1)Chemistry students are taking an experimental course in organic chemistry at a public university. During an experiment involving conjugated dienes, some doubts arose when discussing the results obtained so far: (a) A student obtained two products from the reaction of 1,3-cyclohexadiene with Br2. His lab partner was surprised to get only one product from the reaction of 1,3 - cyclohexadiene with HBr. Explain these distinct results. (b) One student, seeing the discussion of colleagues, commented that she obtained two distinct products when reacting 1,3,5-hexatriene with HBr, with different yields just by changing the reaction temperature. Explain the results she obtained using reaction mechanism and based on kinetic and thermodynamic control involving conjugated dienes.
- Draw the structure of the organic product of the reaction between cyclohexene and H2SO4, H2O. Use the wedge/hash bond tools to indicate stereochemistry where it exists. Separate multiple products using the + sign In cases where there is more than one answer, just draw one. Please make your answer clear. I did not understand the first answer because it was hand -writtenA saturated hydrocarbon burns in oxygen to give carbon dioxide and water. Approximately twice as much CO2 as H2O (by weight) is produced by this combustion, the actual factor being 2.03. Light induced chlorination of the hydrocarbon by 2.0 equivalents of chlorine gives a mixture of mono-, di- and trichloro compounds, along with small amounts of higher chlorination products. Only one monochloro isomer is formed, but there are two dichloro isomers and three trichloro isomers produced in the reaction. Based on this information, you should be able to identify the hydrocarbon, and draw structural formulas for the chlorinated compounds.1,4-Pentadiene (CH2=CH-CH2-CH=CH2) is a liquid at room temperature and has a density of 0.66 g/mL and molar mass of 68.12 g/mol. In a laboratory experiment, 3.80 mL of this compound was treated with 4.80 mL of conc. H2SO4 (100% w/w; molar mass 98.08 g/mol). Note that the density of conc. H2SO4 is 1.84 g/mL. The resulting sulfate ester was then treated with 1.20 mL of water (molar mass 18.02 g/mol) affording, after work- up, 2,4-pentanediol (molar mass 104.15 g/mol) as the crude product. The crude product was then purified by simple distillation, which yielded 2.00 g of pure product. What is the theoretical yield of 2,4-pentanediol expressed in grams? Show calculations. What is the percentage yield of pure 2,4-pentanediol?
- 1,4-Pentadiene (CH2=CH-CH2-CH=CH2) is a liquid at room temperature and has a density of 0.66 g/mL and molar mass of 68.12 g/mol. In a laboratory experiment, 3.80 mL of this compound was treated with 4.80 mL of conc. H2SO4 (100% w/w; molar mass 98.08 g/mol). Note that the density of conc. H2SO4 is 1.84 g/mL. The resulting sulfate ester was then treated with 1.20 mL of water (molar mass 18.02 g/mol) affording, after work- up, 2,4-pentanediol (molar mass 104.15 g/mol) as the crude product. The crude product was then purified by simple distillation, which yielded 2.00 g of pure product. a. Provide a balanced chemical equation to show the reaction between 1,4-pentadiene and sulfuric acid. Do not use molecular formulas in the chemical equation except for sulfuric acid. b. What reactant is the limiting reagent in this chemical equation? Show calculations to support your answer.Elimination of HBr from 2-bromobutane affords a mixture of but-1-ene and but-2-ene. With sodium ethoxide as base, but2-ene constitutes 81% of the alkene products, but with potassium tert-butoxide, but-2-ene constitutes only 67% of the alkene products. Offer an explanation for this difference.The German chemist Wilhelm Kӧrner (1839-1925) observed in 1974 that each of the three isomers of dibromobenzene, A, B, and C, gave a different number of tribromobenzenes upon further bromination, allowing him to assign their respective structures. Try to do the same and assign structures to A, B, and C based on the following results: A gives two tribromobenzenes in comparable amounts B gives three tribromobenzenes, one of them in minor quantities C gives only one tribromobenzene