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9. Treatment of (2R,3S)-2-chloro-3-methylpentane with potassium t-butoxide in t-butanol gives a single stereoisomer of 3-phenyl-2-butene. (15 pts) CI CH, | (CH, CƠ K, CH,CH=C-CH-CH, CHE (CH3),COH Draw the three possible Newman projections of the staggered conformations of (2R,3S)-2- chloro-3-methylpentane. Circle the one Newman projection with the conformation most suited for the elimination reaction. Conformation 2 Conformation 3 Conformation 1 Show the stereoisomer of the product expected from this elimination path.
4. Answer the following questions regarding the compounds given below: CH,OH HOM н -он сон CI (11) (iv) Hm. a) Give a systematic name for compounds III and IV (6 points) b) Draw a newman projection of a staggered conformation for compound III, viewed down the C2- bond. (2 points)
7. Consider the reaction below to answer the following question(s). CH H3C-c-c13;0 CH7 HC H3C-C-OH + C=CH, H2C ethanol CH CH3 The substrate in the reaction is: (1 pt) Compound B is the product of mechanism (1 pt) Compound C is the product of mechanism (1 pt) Write the complete reaction mechanism for the formation of Compound C in this reaction. (2 pts) Final Exam- Part 11 (40 pts) Dr. Indika Galpothdeniya 8. Consider the reaction below to answer the...