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Chem 353-29 - unreacted 1-octene than the more polar...

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Post Lab Questions – Hydroboration-Oxidation (You may write the answers only in your notebook for the post lab questions if you choose.) 1. Show how BH 3 and THF react reversibly to form a complex that stabilizes BH 3 . Label the reactants as either a Lewis acid or a Lewis base. 2. Explain why the diborane solution is added drop-wise to a vial cooled in an ice bath over a period of 5 minutes. 3. In our experiment, is 1-octene acting as a Lewis acid or a Lewis base. 4. Explain why silica gel loaded with silver nitrate is more effective at retaining
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Unformatted text preview: unreacted 1-octene than the more polar 1-octanol product. Is the silver atom a Lewis acid or a Lewis base? 5. Explain what would happen if a student mistakenly used regular silica gel to remove unreacted 1-octene from the crude mixture? 6. Explain what would happen if the crude product was not sufficiently dried before running the column? 7. What product would potentially be isolated if the oxidation step of the reaction where mistakenly run under acidic conditions. (see the resulting IR spectrum below)...
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