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Unformatted text preview: 1. NaSCH 3 2. H 3 O + workup H 3 O + workup 1. PhMgBr 2. H 3 O + workup 1. 2. H 3 O + workup O OEt O 1. NaOEt 2. 3. NaOH 4. H 3 O + , warm I EtO O OEt O 1. NaOEt 2. 3. NaOH 4. H 3 O + , warm OTs O O OEt O OH Ph O SCH 3 O N O O TA: Danny Ng 3/10/2003 Problem Set 9 4. For the following reaction: (a) Provide the structure for the Compound A. (b) Provide the reaction mechanism. O Compound A 1. KOH 2. H3O + workup 3. heat O O O H OH O O O O O O Michael Addition O O Aldol proton transfer O OH H OH O Dehydration...
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- Winter '05