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Unformatted text preview: CHO + OEt O O Ph OEt O O Ph O O OEt OEt O O 1 2 Ph O O 3 5. Provide the structures for products A-D. NH 2 + OMe O A Br OMe O B 1. MeO , MeOH 2. H 3 O + C 1. HO , H 2 O 2. H 3 O + , ! D NaBH 4 N OH 3 6. Claisen condensation can be used to synthesize ketones as shown in the scheme below. Write down the structures for A-C. OEt O 1. EtO , EtOH 2. H 3 O + A HO , H 2 O, ! B H 3 O + , ! C (C 9 H 18 O) 7. Provide the structures for A and C. O O OEt EtO + O EtONa (cat) EtOH A 1. EtONa (1 equiv) EtOH O CO 2 Et O 1. HO , H 2 O, ! 2. H 3 O + B 2. H 3 O + , ! C 8. Provide the structures for A and B. Suggest a mechanism for the formation of A and B. O H EtONa, EtOH H OEt O (exs) A O t-BuOK B KOH, H 2 O O H...
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This note was uploaded on 09/07/2009 for the course CHEM 2183 taught by Professor Jonnjardarson during the Spring '09 term at Cornell University (Engineering School).
- Spring '09