Chem112BPractice3 - involving an O to C migration as...

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Chem 112B Spring 2007 Practice Problems (03/27/07) Problem 1 Propose a synthesis of B from A O OH Br O HO OH A B Problem 2 Synthesize (a) Et Cl from (b) NO 2 from NH 2 NH 2 Br Problem 3 Predict the major product of the following transformations. NO 2 HNO 3 H 2 SO 4 (a) (b) OCH 3 CH 3 H 2 SO 4 (c) OH NO 2 FeCl 3 Cl 2
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Problem 4 The following aromatic substitution reaction ( A to B ) proceeds via a mechanism
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Unformatted text preview: involving an O to C migration as outlined below: OH O O O H O O "O to C' Migration O O H OH O A B Acetic acid With this knowledge in mind, propose a mechanism for the following transformation that makes rhodamine dye. N OH O O O N O N CO 2 H Rhodamine dye (red) H 2 SO 4 Heat...
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Chem112BPractice3 - involving an O to C migration as...

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