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- Draw the constitutional isomer formed when the following alkenes are treated with each set of reagents: [1] H20, H,SO,; or [2] BH3 followed by H2O2, "OH. a. b. c.14. Choose the reagents needed to create an alkene with a double bond between C3 and C4. a. Conc. H2SO4 OH b. 1) BH3 THF; 2) H2O2, NaOH c. HBr, ROOR d. HBrDraw the structures of the missing reactant, reagent, or major products
- What is the major organic product of the following reaction?Which alcohols can be prepared as a single product by hydroboration– oxidation of an alkene? Which alcohols can be prepared as a single product by the acid-catalyzed addition of H2O to an alkene?1. Are addition reactions of alkenes exothermic or endothermic? 2. Do elimination reactions requiere a base or a nucleophile?
- Jj.125.Synthesize each compound from benzonitrile (C6H5CN) as the only organic starting material; that is, every carbon in the product must originate in benzonitrile.7) You want to synthesize 3-methyl-2-pentene from 2-chloro-3-methylpentane. Which reagent would you use? a. HCI, heat b. NH:(aq), 25°C c. CH:CO2NA, CH:CO2H, heat d. CH3CH2ONA, CH3CH2OH, heat e. CН:CH2ОН, heat
- 73. O-hydroxybenzoic acid.is a major product formed with phenol and which other reactant/s? I-primary alcohol Il-sodium hydroxide Ill-water IV-carbon dioxide A. I and III B. I and IV C. II and III D. II and IV 74. How many substitution product/s is/are formed when metabromo anisole is treated with ammonia? A. 0 no reaction B. 1 C. 2 D. 3 75. Butan-1-ol is formed from which of the following reactant-reaction pair? A. Butanal-reduction reaction B. Butanone - reduction reaction C. Butanoic acid oxidation reaction D. Butene- dehydration reaction 76. Dienone phenol rearrangement reaction belongs to which type of reaction? A. Neutral B. Acid-catalyzed reaction C. Base catalyzed reaction D. Neither of the given choices 77. Evaluate the given statements: In SNI the first step involves the formation of a carbocation. Afterward, the carbocation is attacked by an electrophile. A. Only the first statement is correct. B. Only the second statement is correct. C. Both statements are correct.Label each pair of compounds as keto–enol tautomers or constitutional isomers, but not tautomers.10:7 We prepared 2-butyne from the reaction of ethyne with two molecules of chloro methyle .B one molecules of chloro methyle .C two molecules of chloro ethyle .D one molecules of chloro metyle and one molecules of chloro ethyle