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Hello can someone please help me with these questions? Explinations and answers please. Read Ch 12. CHEM 220B Spring 2017 Supplemental Problem Set 2 Eric R. Marinez 1. Starting with bromobenzene and any other needed reagents, outline a sunthesis of the following aldehyde AIC 13 Alc13 2. Show how you would prepare the following alcohol from bromobenzene and 1-butene. OH 3. Write a retrosynthetic analysis and synthetic reactions that could be used to prepare racemic Meparfynol, a mild hypnotic, starting with compounds of four carbon atoms or fewer. OH and any other reagents, detail a synthesis for 4. Starting from retrosynthetic analysis. the following alcohol. Begin by writing a

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MgBr 1)Mg, ether 1) PCC 2) H30+ pcc is a w eak oxidizing agert which oxidizes acohol to aldehyde 2) MgBr O Mg, ether OH 2) H3Retrosvnthesis OMgBr 0 OH MgBr TsO TSO HO Br OTS Svnthesis 0 TsCI MgBr Mg OTs ether 2) H3o* Ho TSO 0 NaOH, H202

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