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Unformatted text preview: (’08) Test 1A Page 2. 3c (8) Show the expected product(s) for each of the following reaction O HO Br 2 , H + CrO 3 H+ O HO O NH 3 H + H + acyclic form 4a (6) MECHANISM: Draw a mechanism for the following reaction, showing all intermediates, all curly arrows describing electron movement and all charges (if applicable). N H H 2 O + H + H 2 N O H : 4b (6) Use the appropriate pKa equations to show why LDA (Li diisopropylamide, pKa diisopropylamine 35) can be used to quantitatively deprotonate a typical aldehyde (pKa 19). 5 (4) Synthesis. Show how aldol reactions can be used to synthesize the following α , β-unsaturated carbonyl-containing compounds. Show the intermediate aldol formed in each case. O O...
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This note was uploaded on 07/28/2009 for the course ORGANIC CH CHEM 2204 taught by Professor Dr.levin during the Winter '08 term at Indian Institute of Technology, Chennai.
- Winter '08