CHM 233 Chapter Notes - Chapter 7-8: California Department Of Transportation, T Formation, Regioselectivity

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5 Sep 2018
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Heterogeneous catalyst does not dissolve: phpd. Added in opposite planes a products = racemic mixture. Proton transfer occurs ( leaves oh) egioseleotivityhtalohydrin) Syn dihydroxylatioh syn addition of oh and oh across at bond. Breaks double bond , forms 2 fin its place. Low temp enthalpy dominates addition is favored. High temp entropy dominates elimination is favored. Thereby we use lower temps for addition. Peroxide (roor) regiosdectivetor anti - narkonikov. Leads to a products 101 -= r/s : racemic mixture. Hi oh are added across the t bond. Markonikov regio selectivity a oh to the more substituted carbon. + nudeophillic attack: proton transfer again " gets rid of oxonium. Leads to 2 products ( pt ra ) Markonikov addition of hand oh idepends on. No rearrangement not "s non aoorttgtioae t. tt#hoa . occurs. Hand oh added syn fashion: added into the same plane. Catalytic hydrogenation addition of ha across at bond a.

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