Show how you would synthesize 3-niko-4-bromobenzoic acid using toluene as the startine material. Use the inscribed polygon method to show why cyclopropenyl cation (1) is aromatic while cyclobutadiene (2) is not aromatic. Write a stepwise mechanism for the following reaction: Show how you would accomplish the following syntheses efficiently and in good yield. Give the products of each of the following reactions: (D (5 marks)Įxplain why the meta product is formed in the following reaction despite the fact that -N(CH3)2 is usually an ortho, para director.ĭraw a stepwise mechanism for the following reaction: Show how you would s5mthesize the following compound, using as starting materials cyclohexanol and any alcohol containing four or fewer carbon atoms, and any necessary solvents and inorganic reagents.Įxplain in detail, uslng resonance structures, why a COOCH3 group is a meta dtrector that deactivates abenzene ring toward electrophilic aromatic substitution. Stepwise, detailed mechanism for the following reaction, Identify the reagents (a-h) needed to carry out each reaction. You may answer the questions either in Bahasa Malaysia or in English.Ī candidate answers more than five questions, oniy the answers to the first five will be graded. Igglfgctions: Answer any FIVE (5) questions. Please check that this examination paper consists KOT 222 - Organic Chemistry [Kimia Organik III First Semester Examination Academic Session 2008/2009 November 2008
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