222-11 OYO#5

Why do you think there is a change in reactivity for

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Unformatted text preview: do you think there is a change in reactivity for the sulfur vs. the phosphonium ylide? On Friday (3/3/11), we will learn more about α,β-unsaturated carbonyl compounds. After Friday’s lecture, explain the difference in reactivity below. Be sure to include the correct arrow-formalism for each conversion. O O O (H3C)2HS CH2 (H3C)2S ! CH2 O + DMSO O 3. Provide the correct arrow-formalism for the following iodolactonization reaction. Recall how halogens react with alkenes. O I2 HOOC CH3 CH3 H 3C O CH3 NaHCO3 CH3 I 2 4. A compound h...
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