CHEM 2220 Midterm: CHEM 2220 Term Test 2 2005

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31 Jan 2019
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Page 2 of 6: (8 marks) provide detailed stepwise mechanisms for the following reaction sequence. O: (5 marks) provide a detailed stepwise mechanism for the following reaction. Cooh (note: requires more than one step!!!!: (5marks) Page 5 of 6 (5 marks) the spectra of an unknown organic compound a having the formula c12h18o4 are shown below. 2. 222 - introductory organic chemistry ii - term test 2. This is a 2-hour test, marked out of 36 points total. If more space is required you may use the backs of the exam pages but be sure to indicate that you have done so. A spectroscopic data sheet is attached at the end of the exam: (5 marks) provide a detailed stepwise mechanism for the reaction of the spirocyclic acid anhydride 1 with naoh to give 2. Lb (nucleophile) attacks most electron-deficient (electrophilic) carbonyl c. the electron withdrawing effect of the br makes the top carbonyl group more electrophilic.