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- 2-phenylethanol, a molecule extensively used in perfumery, can be prepared by treating benzene with ethylene oxide in the presence of a strong acid catalyst. Propose a mechanism for this reaction, showing all resonance forms of the sigma complex intermediate. [H+] OHPredict the products for the following reaction (1,2- and 1,4- addition) and propose a mechanism that explains the formation of each product. (1) (2) HCI + (3) (4)Are the following reactions possible? If so, predict the product(s) for the reactions below. Explain your predictions in details. You may support your explanation with the appropriate reaction mechanisms. (i) NaOH DMSO Br (ii) HO HI
- Predict the organic products of the following reaction. Show stereochemistry clearly. The (R) or (S) designation for each stereocenter carbon atom is specified adjacent to the answer box, please draw the products accordingly. X H KMnO4 (aq) KOH, cold (3R, 4S) (3S, 4R)(b) From the following molecules, A-D, a rotaxane can be formed. B NH i. ii. A HN H 'N C H D Cd(CIO4)2 NH₂ Draw the structure of the possible rotaxane that can be formed by molecules A-D. Give the order you would add the above molecules in order to synthesise a rotaxane. Justify your chosen order.a) Propose an efficient synthesis for the following reaction: b) Write the mechanism and predict the products for the following reaction: HBr
- * Predict the products and stereochemistry for the following reduction reaction NaBH4 (a) EtOH H2 Lindlar catalyst (b) 3-Hexyne (c) 3-Hexyne (d) CEC H2 Ni₂B (P-2) Na NH310 Give the reaction mechanism showing all possible products for the following reactions: Reaction of ethene with bromine, Br2 (l)Predict the product(s) for each of the following reactions and show the arrows for the mechanisms. a) + NEC -CEN b) c) + CI