exam2sp03chem12b

exam2sp03chem12b - Chem 12B Dr. Harrison EXAM #2 Name _ Sp...

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Chem 12B EXAM #2 Name __________________ Dr. Harrison Sp ‘03 1. (8 pts) Explain why this compound has a larger than expected dipole moment. Draw resonance structures to support your answer. 2. (12 pts) Show how you would complete the following conversions. Br O OH O C N O Cl 3. (8 pts) Predict the product for this reaction and explain your reasoning. a) H H O O Cl 1 equiv. HOCH 2 CH 2 OH b) Why are acetals stable to basic conditions? 4. (6 pts) Circle the aromatic compound(s), but a box around the anti-aromatic compound(s), and underline the non-aromatic compounds. + - N N H H 3 C O O N N CH 3 caffeine
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a. H O O O Zn(Hg) HCl, H 2 O 1. N 2 H 4 2. KOH H 3 O + b. O H Na NH 3 , CH 3 OH c. CN + H 3 CO Heat 1) H 3 O + 2) SOCl 2 3) LiAlH(O-t-Bu) 3 X X d. + O H Heat e. S + SO 3 H 2 SO 4 f. Hot, conc. KMnO 4 g. N
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exam2sp03chem12b - Chem 12B Dr. Harrison EXAM #2 Name _ Sp...

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