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- Cembrene, C20H32, is a diterpenoid hydrocarbon isolated from pine resin. Cembrene has a UV absorption at 245 nm, but dihydrocembrene (C20H34), the product of hydrogenation with 1 equivalent of H2, has no UV absorption. On exhaustive hydrogenation, 4 equivalents of H2 react, and octahydrocembrene, C20H40, is produced. On ozonolysis of cembrene, followed by treatment of the ozonide with zinc, four carbonylcontaining products are obtained: Propose a structure for cembrene that is consistent with its formation from geranylgeranyl diphosphate.Give the structures of the substitution products expected when 1-bromohexane reacts with(a) NaOCH2CH3 (b) KCN (c) NaOHWrite equations for the reaction of 1-butanol with reagent. Where you predict no reaction, write NR. Q) K2Cr2O7, H2SO4, H2O, heat
- A. In the synthesis of 1-bromobutane, what is the inorganic by-product left in the reaction flask following the distillation? Why was the bromoalkane the bottom layer in the separatory funnel? B. Predict the product when 1-methylcyclohexanol reacts with H2SO4 and KBr. Show the mechanism.Write reactions of 2-methylbutene-2 with the following reagents: a. KMnO4/ H2O/20 °C; b. HBr.https://www.bartleby.com/questions-and-answers/4.-what-carbonyl-compounds-give-the-following-alcohols-on-reduction-with-liaih4-show-all-possibiliti/57dd480d-13a9-449b-891a-67217d3799f1
- Virgin coconut oil contains about 46-48% of lauric acid (CH3(CH2)10COOH). In thepresence acid catalyst and an alcohol, propose the mechanism of this reaction.For the base-catalysed hydrolysis of 3-bromo-3-methylhexane (i.e. reaction with the nucleophile OH-): For the reaction intermediate, draw its structure and give the VSEPR description of the geometry at the reaction centre Give the names and draw the structures of the two reaction products. Explain your conclusions.For each compound, give the product(s) expected from (1) HgSO4>H2SO4@catalyzedhydration and (2) hydroboration–oxidation. ) hex-3-yne
- Nitromethane is reacted with ethyl prop-2-enoate with EtO-Na+, EtOH 3 equivalents to give the product X(C16). X then reacts with H2/Raney Ni to give the product Y(C14), which in turn reacts with Na to give Z (C12). Indicate which products X, Y and Z are.Butanone is formed when an alkyne is passed through a dil sol of H2SO4at 330K in presence of mercuric sulphate. Write the possible structure of the alkyne.Predict the products and propose mechanisms for the reactions of ketones and aldehydes with oxidizing and reducing agents, amines, alcohols, and phosphorus ylides.